120122111022121 has 16 divisors (see below), whose sum is σ = 136972200960000. Its totient is φ = 104359189978368.

The previous prime is 120122111022073. The next prime is 120122111022157. The reversal of 120122111022121 is 121220111221021.

It is a happy number.

It is not a de Polignac number, because 120122111022121 - 2¹⁹ = 120122110497833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120122111022521) 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, 128088280 + ... + 129022678.

It is an arithmetic number, because the mean of its divisors is an integer number (8560762560000).

Almost surely, 2^{120122111022121} is an apocalyptic number.

It is an amenable number.

120122111022121 is a deficient number, since it is larger than the sum of its proper divisors (16850089937879).

120122111022121 is a wasteful number, since it uses less digits than its factorization.

120122111022121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1516128.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 120122111022121 its reverse (121220111221021), we get a palindrome (241342222243142).

The spelling of 120122111022121 in words is "one hundred twenty trillion, one hundred twenty-two billion, one hundred eleven million, twenty-two thousand, one hundred twenty-one".