122000200021 has 16 divisors (see below), whose sum is σ = 151828099200. Its totient is φ = 95651696448.

The previous prime is 122000200009. The next prime is 122000200031. The reversal of 122000200021 is 120002000221.

It is not a de Polignac number, because 122000200021 - 2⁵ = 122000199989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122000199980 and 122000200007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122000200031) 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, 15811570 + ... + 15819283.

It is an arithmetic number, because the mean of its divisors is an integer number (9489256200).

Almost surely, 2^122000200021 is an apocalyptic number.

It is an amenable number.

122000200021 is a deficient number, since it is larger than the sum of its proper divisors (29827899179).

122000200021 is a wasteful number, since it uses less digits than its factorization.

122000200021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31630908.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 122000200021 its reverse (120002000221), we get a palindrome (242002200242).

It can be divided in two parts, 1 and 22000200021, that added together give a palindrome (22000200022).

The spelling of 122000200021 in words is "one hundred twenty-two billion, two hundred thousand, twenty-one".