100021203210 has 16 divisors (see below), whose sum is σ = 240050887776. Its totient is φ = 26672320848.

The previous prime is 100021203173. The next prime is 100021203223. The reversal of 100021203210 is 12302120001.

It is a super-2 number, since 2×100021203210² (a number of 23 digits) contains 22 as substring.

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, 1667020024 + ... + 1667020083.

It is an arithmetic number, because the mean of its divisors is an integer number (15003180486).

Almost surely, 2^100021203210 is an apocalyptic number.

100021203210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100021203210 is an abundant number, since it is smaller than the sum of its proper divisors (140029684566).

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

100021203210 is a wasteful number, since it uses less digits than its factorization.

100021203210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3334040117.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 100021203210 its reverse (12302120001), we get a palindrome (112323323211).

The spelling of 100021203210 in words is "one hundred billion, twenty-one million, two hundred three thousand, two hundred ten".