22022142 has 32 divisors (see below), whose sum is σ = 44943360. Its totient is φ = 7192800.

The previous prime is 22022131. The next prime is 22022153. The reversal of 22022142 is 24122022.

It is an interprime number because it is at equal distance from previous prime (22022131) and next prime (22022153).

It is a congruent number.

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 in 15 ways as a sum of consecutive naturals, for example, 98643 + ... + 98865.

It is an arithmetic number, because the mean of its divisors is an integer number (1404480).

Almost surely, 2^22022142 is an apocalyptic number.

22022142 is an abundant number, since it is smaller than the sum of its proper divisors (22921218).

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

22022142 is a wasteful number, since it uses less digits than its factorization.

22022142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 22022142 is about 4692.7755113579. The cubic root of 22022142 is about 280.2979057202.

Adding to 22022142 its reverse (24122022), we get a palindrome (46144164).

The spelling of 22022142 in words is "twenty-two million, twenty-two thousand, one hundred forty-two".