122001020100121 has 16 divisors (see below), whose sum is σ = 130379244059200. Its totient is φ = 113819576511168.

The previous prime is 122001020100109. The next prime is 122001020100137. The reversal of 122001020100121 is 121001020100221.

It is a cyclic number.

It is not a de Polignac number, because 122001020100121 - 2⁷ = 122001020099993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122001020100521) 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, 10729590 + ... + 18950623.

It is an arithmetic number, because the mean of its divisors is an integer number (8148702753700).

Almost surely, 2^{122001020100121} is an apocalyptic number.

It is an amenable number.

122001020100121 is a deficient number, since it is larger than the sum of its proper divisors (8378223959079).

122001020100121 is a wasteful number, since it uses less digits than its factorization.

122001020100121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29683528.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 122001020100121 its reverse (121001020100221), we get a palindrome (243002040200342).

The spelling of 122001020100121 in words is "one hundred twenty-two trillion, one billion, twenty million, one hundred thousand, one hundred twenty-one".