22022302138 has 4 divisors (see below), whose sum is σ = 33033453210. Its totient is φ = 11011151068.

The previous prime is 22022302109. The next prime is 22022302139. The reversal of 22022302138 is 83120322022.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 21306365089 + 715937049 = 145967^2 + 26757^2 .

It is not an unprimeable number, because it can be changed into a prime (22022302139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5505575533 + ... + 5505575536.

Almost surely, 2^22022302138 is an apocalyptic number.

22022302138 is a deficient number, since it is larger than the sum of its proper divisors (11011151072).

22022302138 is a wasteful number, since it uses less digits than its factorization.

22022302138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11011151071.

The product of its (nonzero) digits is 2304, while the sum is 25.

The spelling of 22022302138 in words is "twenty-two billion, twenty-two million, three hundred two thousand, one hundred thirty-eight".