20822022 has 40 divisors (see below), whose sum is σ = 50250816. Its totient is φ = 6406128.

The previous prime is 20822017. The next prime is 20822033. The reversal of 20822022 is 22022802.

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 = 20821986 and 20822004.

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, 2838 + ... + 7049.

Almost surely, 2^20822022 is an apocalyptic number.

20822022 is an abundant number, since it is smaller than the sum of its proper divisors (29428794).

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

20822022 is a wasteful number, since it uses less digits than its factorization.

20822022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9914 (or 9905 counting only the distinct ones).

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

The square root of 20822022 is about 4563.1153831566. The cubic root of 20822022 is about 275.1107961261.

Adding to 20822022 its reverse (22022802), we get a palindrome (42844824).

The spelling of 20822022 in words is "twenty million, eight hundred twenty-two thousand, twenty-two".