12001210121022 has 64 divisors (see below), whose sum is σ = 24262398332928. Its totient is φ = 3957304320000.

The previous prime is 12001210121009. The next prime is 12001210121081. The reversal of 12001210121022 is 22012101210021.

It is a junction number, because it is equal to n+sod(n) for n = 12001210120992 and 12001210121010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1273873872 + ... + 1273883292.

It is an arithmetic number, because the mean of its divisors is an integer number (379099973952).

Almost surely, 2^{12001210121022} is an apocalyptic number.

12001210121022 is an abundant number, since it is smaller than the sum of its proper divisors (12261188211906).

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

12001210121022 is a wasteful number, since it uses less digits than its factorization.

12001210121022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15305.

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

Adding to 12001210121022 its reverse (22012101210021), we get a palindrome (34013311331043).

The spelling of 12001210121022 in words is "twelve trillion, one billion, two hundred ten million, one hundred twenty-one thousand, twenty-two".