2022120212221 has 16 divisors (see below), whose sum is σ = 2076503869440. Its totient is φ = 1968082023600.

The previous prime is 2022120212219. The next prime is 2022120212227. The reversal of 2022120212221 is 1222120212202.

It is a cyclic number.

It is not a de Polignac number, because 2022120212221 - 2¹ = 2022120212219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2022120212227) 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, 15483646 + ... + 15613696.

It is an arithmetic number, because the mean of its divisors is an integer number (129781491840).

Almost surely, 2^{2022120212221} is an apocalyptic number.

It is an amenable number.

2022120212221 is a deficient number, since it is larger than the sum of its proper divisors (54383657219).

2022120212221 is a wasteful number, since it uses less digits than its factorization.

2022120212221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131376.

The product of its (nonzero) digits is 256, while the sum is 19.

Subtracting from 2022120212221 its sum of digits (19), we obtain a palindrome (2022120212202).

Adding to 2022120212221 its reverse (1222120212202), we get a palindrome (3244240424423).

The spelling of 2022120212221 in words is "two trillion, twenty-two billion, one hundred twenty million, two hundred twelve thousand, two hundred twenty-one".