121221201000122 has 16 divisors (see below), whose sum is σ = 182948757168672. Its totient is φ = 60238287729360.

The previous prime is 121221201000101. The next prime is 121221201000149. The reversal of 121221201000122 is 221000102122121.

It is a self number, because there is not a number n which added to its sum of digits gives 121221201000122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42577997 + ... + 45335727.

It is an arithmetic number, because the mean of its divisors is an integer number (11434297323042).

Almost surely, 2^{121221201000122} is an apocalyptic number.

121221201000122 is a deficient number, since it is larger than the sum of its proper divisors (61727556168550).

121221201000122 is a wasteful number, since it uses less digits than its factorization.

121221201000122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2892733.

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

Adding to 121221201000122 its reverse (221000102122121), we get a palindrome (342221303122243).

The spelling of 121221201000122 in words is "one hundred twenty-one trillion, two hundred twenty-one billion, two hundred one million, one hundred twenty-two", and thus it is an aban number.