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1112010101220 = 223537500905451
BaseRepresentation
bin10000001011101000111…
…101111001000111100100
310221022021220012010100110
4100023220331321013210
5121204344041214340
62210503403413020
7143224434621624
oct20135075710744
93838256163313
101112010101220
11399667791887
1215b621b24170
1380b29068745
143bb70594884
151ddd5069680
hex102e8f791e4

1112010101220 has 48 divisors (see below), whose sum is σ = 3197780405568. Its totient is φ = 288521539200.

The previous prime is 1112010101203. The next prime is 1112010101281. The reversal of 1112010101220 is 221010102111.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1112010101196 and 1112010101205.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 250450506 + ... + 250454945.

It is an arithmetic number, because the mean of its divisors is an integer number (66620425116).

Almost surely, 21112010101220 is an apocalyptic number.

1112010101220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1112010101220 is an abundant number, since it is smaller than the sum of its proper divisors (2085770304348).

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

1112010101220 is a wasteful number, since it uses less digits than its factorization.

1112010101220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500905500 (or 500905498 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1112010101220 its reverse (221010102111), we get a palindrome (1333020203331).

The spelling of 1112010101220 in words is "one trillion, one hundred twelve billion, ten million, one hundred one thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 37 60 74 111 148 185 222 370 444 555 740 1110 2220 500905451 1001810902 1502716353 2003621804 2504527255 3005432706 5009054510 6010865412 7513581765 10018109020 15027163530 18533501687 30054327060 37067003374 55600505061 74134006748 92667508435 111201010122 185335016870 222402020244 278002525305 370670033740 556005050610 1112010101220