122020211121 has 8 divisors (see below), whose sum is σ = 162795495744. Its totient is φ = 81295866960.

The previous prime is 122020211111. The next prime is 122020211197. The reversal of 122020211121 is 121112020221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 122020211121 - 2³⁰ = 120946469297 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122020211121.

It is not an unprimeable number, because it can be changed into a prime (122020211111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12729525 + ... + 12739106.

It is an arithmetic number, because the mean of its divisors is an integer number (20349436968).

Almost surely, 2^122020211121 is an apocalyptic number.

It is an amenable number.

122020211121 is a deficient number, since it is larger than the sum of its proper divisors (40775284623).

122020211121 is a wasteful number, since it uses less digits than its factorization.

122020211121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25470231.

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

Adding to 122020211121 its reverse (121112020221), we get a palindrome (243132231342).

The spelling of 122020211121 in words is "one hundred twenty-two billion, twenty million, two hundred eleven thousand, one hundred twenty-one".