22122402 has 16 divisors (see below), whose sum is σ = 44702112. Its totient is φ = 7297920.

The previous prime is 22122391. The next prime is 22122409. The reversal of 22122402 is 20422122.

It is not an unprimeable number, because it can be changed into a prime (22122409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18424 + ... + 19587.

It is an arithmetic number, because the mean of its divisors is an integer number (2793882).

Almost surely, 2^22122402 is an apocalyptic number.

22122402 is an abundant number, since it is smaller than the sum of its proper divisors (22579710).

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

22122402 is a wasteful number, since it uses less digits than its factorization.

22122402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38113.

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

The square root of 22122402 is about 4703.4457581650. The cubic root of 22122402 is about 280.7226317071.

Adding to 22122402 its reverse (20422122), we get a palindrome (42544524).

The spelling of 22122402 in words is "twenty-two million, one hundred twenty-two thousand, four hundred two".