12212121112010 has 16 divisors (see below), whose sum is σ = 22690908905472. Its totient is φ = 4727272688400.

The previous prime is 12212121112007. The next prime is 12212121112039. The reversal of 12212121112010 is 1021112121221.

It is a self number, because there is not a number n which added to its sum of digits gives 12212121112010.

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, 19696969226 + ... + 19696969845.

It is an arithmetic number, because the mean of its divisors is an integer number (1418181806592).

Almost surely, 2^{12212121112010} is an apocalyptic number.

12212121112010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12212121112010 is a deficient number, since it is larger than the sum of its proper divisors (10478787793462).

12212121112010 is a wasteful number, since it uses less digits than its factorization.

12212121112010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39393939109.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 12212121112010 its reverse (1021112121221), we get a palindrome (13233233233231).

The spelling of 12212121112010 in words is "twelve trillion, two hundred twelve billion, one hundred twenty-one million, one hundred twelve thousand, ten".