122210201020021 has 32 divisors (see below), whose sum is σ = 131929371158400. Its totient is φ = 112854263316480.

The previous prime is 122210201020007. The next prime is 122210201020049. The reversal of 122210201020021 is 120020102012221.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 122210201020021 - 2³⁹ = 121660445206133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122210201019977 and 122210201020004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122210201020051) 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, 857369685 + ... + 857512213.

It is an arithmetic number, because the mean of its divisors is an integer number (4122792848700).

Almost surely, 2^{122210201020021} is an apocalyptic number.

It is an amenable number.

122210201020021 is a deficient number, since it is larger than the sum of its proper divisors (9719170138379).

122210201020021 is a wasteful number, since it uses less digits than its factorization.

122210201020021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149269.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 122210201020021 its reverse (120020102012221), we get a palindrome (242230303032242).

The spelling of 122210201020021 in words is "one hundred twenty-two trillion, two hundred ten billion, two hundred one million, twenty thousand, twenty-one".