22222691158 has 4 divisors (see below), whose sum is σ = 33334036740. Its totient is φ = 11111345578.

The previous prime is 22222691147. The next prime is 22222691203. The reversal of 22222691158 is 85119622222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 85119622222 = 2 ⋅42559811111.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 22222691158.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555672788 + ... + 5555672791.

It is an arithmetic number, because the mean of its divisors is an integer number (8333509185).

Almost surely, 2^22222691158 is an apocalyptic number.

22222691158 is a deficient number, since it is larger than the sum of its proper divisors (11111345582).

22222691158 is a wasteful number, since it uses less digits than its factorization.

22222691158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11111345581.

The product of its digits is 69120, while the sum is 40.

The spelling of 22222691158 in words is "twenty-two billion, two hundred twenty-two million, six hundred ninety-one thousand, one hundred fifty-eight".