121022122012109 has 4 divisors (see below), whose sum is σ = 121052629231104. Its totient is φ = 120991614793116.

The previous prime is 121022122012079. The next prime is 121022122012163. The reversal of 121022122012109 is 901210221220121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 121022122012109 - 2²⁸ = 121021853576653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121022122012009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15253603547 + ... + 15253611480.

It is an arithmetic number, because the mean of its divisors is an integer number (30263157307776).

Almost surely, 2^{121022122012109} is an apocalyptic number.

It is an amenable number.

121022122012109 is a deficient number, since it is larger than the sum of its proper divisors (30507218995).

121022122012109 is an equidigital number, since it uses as much as digits as its factorization.

121022122012109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30507218994.

The product of its (nonzero) digits is 576, while the sum is 26.

The spelling of 121022122012109 in words is "one hundred twenty-one trillion, twenty-two billion, one hundred twenty-two million, twelve thousand, one hundred nine".