12122020985 has 16 divisors (see below), whose sum is σ = 15125294592. Its totient is φ = 9316272000.

The previous prime is 12122020961. The next prime is 12122021017. The reversal of 12122020985 is 58902022121.

It is a happy number.

It is not a de Polignac number, because 12122020985 - 2⁶ = 12122020921 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 264191 + ... + 306660.

It is an arithmetic number, because the mean of its divisors is an integer number (945330912).

Almost surely, 2^12122020985 is an apocalyptic number.

It is an amenable number.

12122020985 is a deficient number, since it is larger than the sum of its proper divisors (3003273607).

12122020985 is a wasteful number, since it uses less digits than its factorization.

12122020985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571024.

The product of its (nonzero) digits is 5760, while the sum is 32.

The spelling of 12122020985 in words is "twelve billion, one hundred twenty-two million, twenty thousand, nine hundred eighty-five".