122021012121 has 16 divisors (see below), whose sum is σ = 165374623680. Its totient is φ = 80007577920.

The previous prime is 122021012093. The next prime is 122021012153. The reversal of 122021012121 is 121210120221.

It is not a de Polignac number, because 122021012121 - 2¹⁰ = 122021011097 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 122021012121.

It is not an unprimeable number, because it can be changed into a prime (122021012021) 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, 4559646 + ... + 4586328.

It is an arithmetic number, because the mean of its divisors is an integer number (10335913980).

Almost surely, 2^122021012121 is an apocalyptic number.

It is an amenable number.

122021012121 is a deficient number, since it is larger than the sum of its proper divisors (43353611559).

122021012121 is a wasteful number, since it uses less digits than its factorization.

122021012121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51736.

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

Adding to 122021012121 its reverse (121210120221), we get a palindrome (243231132342).

The spelling of 122021012121 in words is "one hundred twenty-two billion, twenty-one million, twelve thousand, one hundred twenty-one".