22013122 has 4 divisors (see below), whose sum is σ = 33019686. Its totient is φ = 11006560.

The previous prime is 22013081. The next prime is 22013137. The reversal of 22013122 is 22131022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22131022 = 2 ⋅11065511.

It can be written as a sum of positive squares in only one way, i.e., 15515721 + 6497401 = 3939^2 + 2549^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5503279 + ... + 5503282.

Almost surely, 2^22013122 is an apocalyptic number.

22013122 is a deficient number, since it is larger than the sum of its proper divisors (11006564).

22013122 is a wasteful number, since it uses less digits than its factorization.

22013122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11006563.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 22013122 is about 4691.8143612040. The cubic root of 22013122 is about 280.2596316296.

Adding to 22013122 its reverse (22131022), we get a palindrome (44144144).

The spelling of 22013122 in words is "twenty-two million, thirteen thousand, one hundred twenty-two".