121210220022209 has 16 divisors (see below), whose sum is σ = 128624973235200. Its totient is φ = 113974226338896.

The previous prime is 121210220022139. The next prime is 121210220022253. The reversal of 121210220022209 is 902220022012121.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121210220022209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121210220022509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 226241522 + ... + 226776644.

It is an arithmetic number, because the mean of its divisors is an integer number (8039060827200).

Almost surely, 2^{121210220022209} is an apocalyptic number.

It is an amenable number.

121210220022209 is a deficient number, since it is larger than the sum of its proper divisors (7414753212991).

121210220022209 is a wasteful number, since it uses less digits than its factorization.

121210220022209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702124.

The product of its (nonzero) digits is 1152, while the sum is 26.

The spelling of 121210220022209 in words is "one hundred twenty-one trillion, two hundred ten billion, two hundred twenty million, twenty-two thousand, two hundred nine".