20214522 has 20 divisors (see below), whose sum is σ = 45295866. Its totient is φ = 6738120.

The previous prime is 20214497. The next prime is 20214527. The reversal of 20214522 is 22541202.

It can be written as a sum of positive squares in only one way, i.e., 16329681 + 3884841 = 4041^2 + 1971^2 .

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 = 20214495 and 20214504.

It is not an unprimeable number, because it can be changed into a prime (20214527) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 62229 + ... + 62552.

Almost surely, 2^20214522 is an apocalyptic number.

20214522 is an abundant number, since it is smaller than the sum of its proper divisors (25081344).

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

20214522 is a wasteful number, since it uses less digits than its factorization.

20214522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124795 (or 124786 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 20214522 is about 4496.0562718898. The cubic root of 20214522 is about 272.4088161093.

Adding to 20214522 its reverse (22541202), we get a palindrome (42755724).

It can be divided in two parts, 20214 and 522, that added together give a 4-th power (20736 = 12⁴).

The spelling of 20214522 in words is "twenty million, two hundred fourteen thousand, five hundred twenty-two".