12121010120022 has 16 divisors (see below), whose sum is σ = 24260974141440. Its totient is φ = 4037177723112.

The previous prime is 12121010119973. The next prime is 12121010120029. The reversal of 12121010120022 is 22002101012121.

It is a junction number, because it is equal to n+sod(n) for n = 12121010119983 and 12121010120010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12121010120029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 789737578 + ... + 789752925.

It is an arithmetic number, because the mean of its divisors is an integer number (1516310883840).

Almost surely, 2^{12121010120022} is an apocalyptic number.

12121010120022 is an abundant number, since it is smaller than the sum of its proper divisors (12139964021418).

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

12121010120022 is a wasteful number, since it uses less digits than its factorization.

12121010120022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1579491787.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12121010120022 its reverse (22002101012121), we get a palindrome (34123111132143).

The spelling of 12121010120022 in words is "twelve trillion, one hundred twenty-one billion, ten million, one hundred twenty thousand, twenty-two".