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1202202201020 = 225791579974861
BaseRepresentation
bin10001011111101000110…
…101011100101110111100
311020221002112112111212012
4101133220311130232330
5124144102230413040
62320141205230352
7152566456050122
oct21375065345674
94227075474765
101202202201020
1142393a88a337
12174bb31023b8
13894a090a132
1442288bb9912
15214131de865
hex117e8d5cbbc

1202202201020 has 96 divisors (see below), whose sum is σ = 2575976282880. Its totient is φ = 471199472640.

The previous prime is 1202202201017. The next prime is 1202202201029. The reversal of 1202202201020 is 201022022021.

It is a junction number, because it is equal to n+sod(n) for n = 1202202200986 and 1202202201004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202202201029) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 247313390 + ... + 247318250.

It is an arithmetic number, because the mean of its divisors is an integer number (26833086280).

Almost surely, 21202202201020 is an apocalyptic number.

1202202201020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1202202201020 is an abundant number, since it is smaller than the sum of its proper divisors (1373774081860).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1202202201020 is a wasteful number, since it uses less digits than its factorization.

1202202201020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6103 (or 6101 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 1202202201020 its reverse (201022022021), we get a palindrome (1403224223041).

The spelling of 1202202201020 in words is "one trillion, two hundred two billion, two hundred two million, two hundred one thousand, twenty".

Divisors: 1 2 4 5 10 20 79 157 158 314 316 395 628 785 790 997 1570 1580 1994 3140 3988 4861 4985 9722 9970 12403 19444 19940 24305 24806 48610 49612 62015 78763 97220 124030 156529 157526 248060 313058 315052 384019 393815 626116 763177 768038 782645 787630 1526354 1536076 1565290 1575260 1920095 3052708 3130580 3815885 3840190 4846417 7631770 7680380 9692834 12365791 15263540 19385668 24232085 24731582 48464170 49463164 60290983 61828955 96928340 120581966 123657910 241163932 247315820 301454915 382866943 602909830 760887469 765733886 1205819660 1521774938 1531467772 1914334715 3043549876 3804437345 3828669430 7608874690 7657338860 15217749380 60110110051 120220220102 240440440204 300550550255 601101100510 1202202201020