122120210000121 has 16 divisors (see below), whose sum is σ = 172411512811200. Its totient is φ = 76621551953408.

The previous prime is 122120210000101. The next prime is 122120210000137. The reversal of 122120210000121 is 121000012021221.

It is a cyclic number.

It is not a de Polignac number, because 122120210000121 - 2¹³ = 122120209991929 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122120210000121.

It is not an unprimeable number, because it can be changed into a prime (122120210000101) 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, 43847331 + ... + 46549208.

It is an arithmetic number, because the mean of its divisors is an integer number (10775719550700).

Almost surely, 2^{122120210000121} is an apocalyptic number.

It is an amenable number.

122120210000121 is a deficient number, since it is larger than the sum of its proper divisors (50291302811079).

122120210000121 is a wasteful number, since it uses less digits than its factorization.

122120210000121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90423048.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 122120210000121 its reverse (121000012021221), we get a palindrome (243120222021342).

The spelling of 122120210000121 in words is "one hundred twenty-two trillion, one hundred twenty billion, two hundred ten million, one hundred twenty-one", and thus it is an aban number.