22209999958 has 4 divisors (see below), whose sum is σ = 33314999940. Its totient is φ = 11104999978.

The previous prime is 22209999923. The next prime is 22209999967. The reversal of 22209999958 is 85999990222.

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

It is a self number, because there is not a number n which added to its sum of digits gives 22209999958.

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, 5552499988 + ... + 5552499991.

It is an arithmetic number, because the mean of its divisors is an integer number (8328749985).

Almost surely, 2^22209999958 is an apocalyptic number.

22209999958 is a deficient number, since it is larger than the sum of its proper divisors (11104999982).

22209999958 is a wasteful number, since it uses less digits than its factorization.

22209999958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11104999981.

The product of its (nonzero) digits is 18895680, while the sum is 64.

The spelling of 22209999958 in words is "twenty-two billion, two hundred nine million, nine hundred ninety-nine thousand, nine hundred fifty-eight".