12220121210012 has 12 divisors (see below), whose sum is σ = 21385402123176. Its totient is φ = 6110006317680.

The previous prime is 12220121209931. The next prime is 12220121210027. The reversal of 12220121210012 is 21001212102221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13063238 + ... + 13967405.

It is an arithmetic number, because the mean of its divisors is an integer number (1782116843598).

Almost surely, 2^{12220121210012} is an apocalyptic number.

It is an amenable number.

12220121210012 is a deficient number, since it is larger than the sum of its proper divisors (9165280913164).

12220121210012 is a wasteful number, since it uses less digits than its factorization.

12220121210012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27143668 (or 27143666 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12220121210012 its reverse (21001212102221), we get a palindrome (33221333312233).

The spelling of 12220121210012 in words is "twelve trillion, two hundred twenty billion, one hundred twenty-one million, two hundred ten thousand, twelve".