122011200002121 has 16 divisors (see below), whose sum is σ = 166651394595840. Its totient is φ = 79355949150080.

The previous prime is 122011200002119. The next prime is 122011200002137. The reversal of 122011200002121 is 121200002110221.

It is not a de Polignac number, because 122011200002121 - 2¹ = 122011200002119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122011200002121.

It is not an unprimeable number, because it can be changed into a prime (122011200002171) 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, 4823896 + ... + 16349078.

It is an arithmetic number, because the mean of its divisors is an integer number (10415712162240).

Almost surely, 2^{122011200002121} is an apocalyptic number.

It is an amenable number.

122011200002121 is a deficient number, since it is larger than the sum of its proper divisors (44640194593719).

122011200002121 is a wasteful number, since it uses less digits than its factorization.

122011200002121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11611296.

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

Adding to 122011200002121 its reverse (121200002110221), we get a palindrome (243211202112342).

The spelling of 122011200002121 in words is "one hundred twenty-two trillion, eleven billion, two hundred million, two thousand, one hundred twenty-one".