122120002121 has 16 divisors (see below), whose sum is σ = 132358209984. Its totient is φ = 112002813504.

The previous prime is 122120002091. The next prime is 122120002187. The reversal of 122120002121 is 121200021221.

It is a cyclic number.

It is not a de Polignac number, because 122120002121 - 2⁶ = 122120002057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122120002096 and 122120002105.

It is not an unprimeable number, because it can be changed into a prime (122120052121) 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, 10900895 + ... + 10912091.

It is an arithmetic number, because the mean of its divisors is an integer number (8272388124).

Almost surely, 2^122120002121 is an apocalyptic number.

It is an amenable number.

122120002121 is a deficient number, since it is larger than the sum of its proper divisors (10238207863).

122120002121 is a wasteful number, since it uses less digits than its factorization.

122120002121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16520.

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

Adding to 122120002121 its reverse (121200021221), we get a palindrome (243320023342).

It can be divided in two parts, 1 and 22120002121, that added together give a palindrome (22120002122).

The spelling of 122120002121 in words is "one hundred twenty-two billion, one hundred twenty million, two thousand, one hundred twenty-one".