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1022101020100 = 225257241178561
BaseRepresentation
bin11101101111110011111…
…01111101110111000100
310121201012222101120111001
432313321331331313010
5113221230330120400
62101314032023044
7133562421215656
oct16677175756704
93551188346431
101022101020100
1136451a41a466
1214610b691a84
13754cb02a724
14376817a26d6
151b8c1b9ba6a
hexedf9f7ddc4

1022101020100 has 36 divisors (see below), whose sum is σ = 2218010382868. Its totient is φ = 408830976000.

The previous prime is 1022101020079. The next prime is 1022101020103. The reversal of 1022101020100 is 10201012201.

It can be written as a sum of positive squares in 6 ways, for example, as 253943429184 + 768157590916 = 503928^2 + 876446^2 .

It is a super-3 number, since 3×10221010201003 (a number of 37 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (1022101020103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5634820 + ... + 5813380.

Almost surely, 21022101020100 is an apocalyptic number.

1022101020100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1022101020100 is an abundant number, since it is smaller than the sum of its proper divisors (1195909362768).

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

1022101020100 is a wasteful number, since it uses less digits than its factorization.

1022101020100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235816 (or 235809 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 1022101020100 its reverse (10201012201), we get a palindrome (1032302032301).

The spelling of 1022101020100 in words is "one trillion, twenty-two billion, one hundred one million, twenty thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 57241 114482 178561 228964 286205 357122 572410 714244 892805 1144820 1431025 1785610 2862050 3571220 4464025 5724100 8928050 17856100 10221010201 20442020402 40884040804 51105051005 102210102010 204420204020 255525255025 511050510050 1022101020100