100520214440520 has 64 divisors (see below), whose sum is σ = 344640735227520. Its totient is φ = 22976049014784.

The previous prime is 100520214440509. The next prime is 100520214440521. The reversal of 100520214440520 is 25044412025001.

It is a super-2 number, since 2×100520214440520² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (100520214440521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59833460137 + ... + 59833461816.

It is an arithmetic number, because the mean of its divisors is an integer number (5385011487930).

Almost surely, 2^{100520214440520} is an apocalyptic number.

100520214440520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100520214440520 is an abundant number, since it is smaller than the sum of its proper divisors (244120520787000).

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

100520214440520 is a wasteful number, since it uses less digits than its factorization.

100520214440520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119666921974 (or 119666921970 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 30.

Adding to 100520214440520 its reverse (25044412025001), we get a palindrome (125564626465521).

The spelling of 100520214440520 in words is "one hundred trillion, five hundred twenty billion, two hundred fourteen million, four hundred forty thousand, five hundred twenty".