20221021202022 has 40 divisors (see below), whose sum is σ = 45666838246656. Its totient is φ = 6687266847408.

The previous prime is 20221021202003. The next prime is 20221021202099. The reversal of 20221021202022 is 22020212012202.

20221021202022 is a `hidden beast` number, since 202 + 210 + 212 + 0 + 20 + 22 = 666.

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 = 20221021201986 and 20221021202004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 491401153 + ... + 491442300.

Almost surely, 2^{20221021202022} is an apocalyptic number.

20221021202022 is an abundant number, since it is smaller than the sum of its proper divisors (25445817044634).

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

20221021202022 is a wasteful number, since it uses less digits than its factorization.

20221021202022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 982843594 (or 982843585 counting only the distinct ones).

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

Adding to 20221021202022 its reverse (22020212012202), we get a palindrome (42241233214224).

The spelling of 20221021202022 in words is "twenty trillion, two hundred twenty-one billion, twenty-one million, two hundred two thousand, twenty-two".