22202138 has 16 divisors (see below), whose sum is σ = 39289344. Its totient is φ = 9208080.

The previous prime is 22202137. The next prime is 22202209. The reversal of 22202138 is 83120222.

It is not an unprimeable number, because it can be changed into a prime (22202137) 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, 25145 + ... + 26012.

It is an arithmetic number, because the mean of its divisors is an integer number (2455584).

Almost surely, 2^22202138 is an apocalyptic number.

22202138 is a deficient number, since it is larger than the sum of its proper divisors (17087206).

22202138 is a wasteful number, since it uses less digits than its factorization.

22202138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51197.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 22202138 is about 4711.9144729080. The cubic root of 22202138 is about 281.0594977925.

The spelling of 22202138 in words is "twenty-two million, two hundred two thousand, one hundred thirty-eight".