122001010002121 has 16 divisors (see below), whose sum is σ = 124935986560000. Its totient is φ = 119070488064528.

The previous prime is 122001010002101. The next prime is 122001010002143. The reversal of 122001010002121 is 121200010100221.

It is a cyclic number.

It is not a de Polignac number, because 122001010002121 - 2¹⁷ = 122001009871049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122001010002101) 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, 1004501020 + ... + 1004622466.

It is an arithmetic number, because the mean of its divisors is an integer number (7808499160000).

Almost surely, 2^{122001010002121} is an apocalyptic number.

It is an amenable number.

122001010002121 is a deficient number, since it is larger than the sum of its proper divisors (2934976557879).

122001010002121 is a wasteful number, since it uses less digits than its factorization.

122001010002121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139588.

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

Adding to 122001010002121 its reverse (121200010100221), we get a palindrome (243201020102342).

The spelling of 122001010002121 in words is "one hundred twenty-two trillion, one billion, ten million, two thousand, one hundred twenty-one".