12121010022 has 32 divisors (see below), whose sum is σ = 27060865920. Its totient is φ = 3587613120.

The previous prime is 12121010003. The next prime is 12121010039. The reversal of 12121010022 is 22001012121.

It is a congruent number.

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, 2132647 + ... + 2138322.

It is an arithmetic number, because the mean of its divisors is an integer number (845652060).

Almost surely, 2^12121010022 is an apocalyptic number.

12121010022 is an abundant number, since it is smaller than the sum of its proper divisors (14939855898).

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

12121010022 is a wasteful number, since it uses less digits than its factorization.

12121010022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4271028.

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

Adding to 12121010022 its reverse (22001012121), we get a palindrome (34122022143).

The spelling of 12121010022 in words is "twelve billion, one hundred twenty-one million, ten thousand, twenty-two".