22132020 has 48 divisors (see below), whose sum is σ = 62995968. Its totient is φ = 5804160.

The previous prime is 22131983. The next prime is 22132027. The reversal of 22132020 is 2023122.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 22131987 and 22132005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22132027) 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, 637 + ... + 6683.

It is an arithmetic number, because the mean of its divisors is an integer number (1312416).

Almost surely, 2^22132020 is an apocalyptic number.

22132020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22132020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31497984).

22132020 is an abundant number, since it is smaller than the sum of its proper divisors (40863948).

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

22132020 is a wasteful number, since it uses less digits than its factorization.

22132020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6120 (or 6118 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 22132020 is about 4704.4680889554. The cubic root of 22132020 is about 280.7633084094.

Adding to 22132020 its reverse (2023122), we get a palindrome (24155142).

The spelling of 22132020 in words is "twenty-two million, one hundred thirty-two thousand, twenty".