100020257520020 has 48 divisors (see below), whose sum is σ = 211220469149760. Its totient is φ = 39783745241856.

The previous prime is 100020257520011. The next prime is 100020257520049. The reversal of 100020257520020 is 20025752020001.

It is a super-2 number, since 2×100020257520020² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

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, 183320744 + ... + 183865536.

It is an arithmetic number, because the mean of its divisors is an integer number (4400426440620).

Almost surely, 2^{100020257520020} is an apocalyptic number.

100020257520020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100020257520020 is an abundant number, since it is smaller than the sum of its proper divisors (111200211629740).

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

100020257520020 is a wasteful number, since it uses less digits than its factorization.

100020257520020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 596264 (or 596262 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 26.

The spelling of 100020257520020 in words is "one hundred trillion, twenty billion, two hundred fifty-seven million, five hundred twenty thousand, twenty".