122101012200021 has 16 divisors (see below), whose sum is σ = 171829278287040. Its totient is φ = 76909682286720.

The previous prime is 122101012199989. The next prime is 122101012200031. The reversal of 122101012200021 is 120002210101221.

It is not a de Polignac number, because 122101012200021 - 2⁵ = 122101012199989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122101012200031) 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, 2871457320 + ... + 2871499841.

It is an arithmetic number, because the mean of its divisors is an integer number (10739329892940).

Almost surely, 2^{122101012200021} is an apocalyptic number.

It is an amenable number.

122101012200021 is a deficient number, since it is larger than the sum of its proper divisors (49728266087019).

122101012200021 is a wasteful number, since it uses less digits than its factorization.

122101012200021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5742957556.

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

Adding to 122101012200021 its reverse (120002210101221), we get a palindrome (242103222301242).

The spelling of 122101012200021 in words is "one hundred twenty-two trillion, one hundred one billion, twelve million, two hundred thousand, twenty-one".