100021212210 has 32 divisors (see below), whose sum is σ = 240063694272. Its totient is φ = 26670902720.

The previous prime is 100021212167. The next prime is 100021212281. The reversal of 100021212210 is 12212120001.

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, 562117 + ... + 718343.

It is an arithmetic number, because the mean of its divisors is an integer number (7501990446).

Almost surely, 2^100021212210 is an apocalyptic number.

100021212210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100021212210 is an abundant number, since it is smaller than the sum of its proper divisors (140042482062).

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

100021212210 is a wasteful number, since it uses less digits than its factorization.

100021212210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177578.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 100021212210 its reverse (12212120001), we get a palindrome (112233332211).

The spelling of 100021212210 in words is "one hundred billion, twenty-one million, two hundred twelve thousand, two hundred ten".