122100200200121 has 32 divisors (see below), whose sum is σ = 151917266285568. Its totient is φ = 96544060683840.

The previous prime is 122100200200103. The next prime is 122100200200219. The reversal of 122100200200121 is 121002002001221.

It is not a de Polignac number, because 122100200200121 - 2²² = 122100196005817 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122100200200096 and 122100200200105.

It is not an unprimeable number, because it can be changed into a prime (122100200400121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 276822971 + ... + 277263696.

It is an arithmetic number, because the mean of its divisors is an integer number (4747414571424).

Almost surely, 2^{122100200200121} is an apocalyptic number.

122100200200121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

122100200200121 is a deficient number, since it is larger than the sum of its proper divisors (29817066085447).

122100200200121 is a wasteful number, since it uses less digits than its factorization.

122100200200121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554086781.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 122100200200121 its reverse (121002002001221), we get a palindrome (243102202201342).

It can be divided in two parts, 1 and 22100200200121, that added together give a palindrome (22100200200122).

The spelling of 122100200200121 in words is "one hundred twenty-two trillion, one hundred billion, two hundred million, two hundred thousand, one hundred twenty-one".