12021112210 has 32 divisors (see below), whose sum is σ = 21965553792. Its totient is φ = 4735843200.

The previous prime is 12021112177. The next prime is 12021112231. The reversal of 12021112210 is 1221112021.

It is a super-2 number, since 2×12021112210² (a number of 21 digits) contains 22 as substring.

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, 519385 + ... + 542035.

It is an arithmetic number, because the mean of its divisors is an integer number (686423556).

Almost surely, 2^12021112210 is an apocalyptic number.

12021112210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12021112210 is a deficient number, since it is larger than the sum of its proper divisors (9944441582).

12021112210 is a wasteful number, since it uses less digits than its factorization.

12021112210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23458.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12021112210 its reverse (1221112021), we get a palindrome (13242224231).

The spelling of 12021112210 in words is "twelve billion, twenty-one million, one hundred twelve thousand, two hundred ten".