122211220022021 has 32 divisors (see below), whose sum is σ = 140946314745600. Its totient is φ = 104968035634176.

The previous prime is 122211220021993. The next prime is 122211220022041. The reversal of 122211220022021 is 120220022112221.

It is a de Polignac number, because none of the positive numbers 2^k-122211220022021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122211220021984 and 122211220022002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122211220022041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1945151 + ... + 15754556.

It is an arithmetic number, because the mean of its divisors is an integer number (4404572335800).

Almost surely, 2^{122211220022021} is an apocalyptic number.

It is an amenable number.

122211220022021 is a deficient number, since it is larger than the sum of its proper divisors (18735094723579).

122211220022021 is a wasteful number, since it uses less digits than its factorization.

122211220022021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17700093.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 122211220022021 its reverse (120220022112221), we get a palindrome (242431242134242).

The spelling of 122211220022021 in words is "one hundred twenty-two trillion, two hundred eleven billion, two hundred twenty million, twenty-two thousand, twenty-one".