100201011020 has 24 divisors (see below), whose sum is σ = 229551407568. Its totient is φ = 36436731200.

The previous prime is 100201011019. The next prime is 100201011061. The reversal of 100201011020 is 20110102001.

It is a super-2 number, since 2×100201011020² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 100201010989 and 100201011007.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227729351 + ... + 227729790.

It is an arithmetic number, because the mean of its divisors is an integer number (9564641982).

Almost surely, 2^100201011020 is an apocalyptic number.

100201011020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100201011020 is an abundant number, since it is smaller than the sum of its proper divisors (129350396548).

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

100201011020 is a wasteful number, since it uses less digits than its factorization.

100201011020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455459161 (or 455459159 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 100201011020 its reverse (20110102001), we get a palindrome (120311113021).

The spelling of 100201011020 in words is "one hundred billion, two hundred one million, eleven thousand, twenty".