12220121010 has 16 divisors (see below), whose sum is σ = 29328290496. Its totient is φ = 3258698928.

The previous prime is 12220120973. The next prime is 12220121041. The reversal of 12220121010 is 1012102221.

12220121010 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203668654 + ... + 203668713.

It is an arithmetic number, because the mean of its divisors is an integer number (1833018156).

Almost surely, 2^12220121010 is an apocalyptic number.

12220121010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12220121010 is an abundant number, since it is smaller than the sum of its proper divisors (17108169486).

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

12220121010 is a wasteful number, since it uses less digits than its factorization.

12220121010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407337377.

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

Adding to 12220121010 its reverse (1012102221), we get a palindrome (13232223231).

It can be divided in two parts, 12 and 220121010, that added together give a palindrome (220121022).

The spelling of 12220121010 in words is "twelve billion, two hundred twenty million, one hundred twenty-one thousand, ten".