2122020022221 has 12 divisors (see below), whose sum is σ = 3343789126080. Its totient is φ = 1286072740680.

The previous prime is 2122020022207. The next prime is 2122020022223. The reversal of 2122020022221 is 1222200202212.

2122020022221 is a `hidden beast` number, since 2 + 1 + 220 + 200 + 22 + 221 = 666.

It is not a de Polignac number, because 2122020022221 - 2²³ = 2122011633613 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2122020022194 and 2122020022203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122020022223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10717272741 + ... + 10717272938.

It is an arithmetic number, because the mean of its divisors is an integer number (278649093840).

Almost surely, 2^{2122020022221} is an apocalyptic number.

It is an amenable number.

2122020022221 is a deficient number, since it is larger than the sum of its proper divisors (1221769103859).

2122020022221 is a wasteful number, since it uses less digits than its factorization.

2122020022221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21434545696 (or 21434545693 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 2122020022221 its reverse (1222200202212), we get a palindrome (3344220224433).

The spelling of 2122020022221 in words is "two trillion, one hundred twenty-two billion, twenty million, twenty-two thousand, two hundred twenty-one".