101221200022122 has 48 divisors (see below), whose sum is σ = 225584899623720. Its totient is φ = 32778223814016.

The previous prime is 101221200022099. The next prime is 101221200022207. The reversal of 101221200022122 is 221220002122101.

It is a happy number.

101221200022122 is a `hidden beast` number, since 1 + 0 + 1 + 221 + 200 + 0 + 221 + 22 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 65902557205521 + 35318642816601 = 8118039^2 + 5942949^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 101221200022095 and 101221200022104.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 115938597 + ... + 116808392.

Almost surely, 2^{101221200022122} is an apocalyptic number.

101221200022122 is an abundant number, since it is smaller than the sum of its proper divisors (124363699601598).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101221200022122 is a wasteful number, since it uses less digits than its factorization.

101221200022122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232747687 (or 232747684 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 101221200022122 its reverse (221220002122101), we get a palindrome (322441202144223).

The spelling of 101221200022122 in words is "one hundred one trillion, two hundred twenty-one billion, two hundred million, twenty-two thousand, one hundred twenty-two".