22121351194 has 16 divisors (see below), whose sum is σ = 35741652480. Its totient is φ = 10238492880.

The previous prime is 22121351173. The next prime is 22121351221. The reversal of 22121351194 is 49115312122.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7755009 + ... + 7757860.

It is an arithmetic number, because the mean of its divisors is an integer number (2233853280).

Almost surely, 2^22121351194 is an apocalyptic number.

22121351194 is a deficient number, since it is larger than the sum of its proper divisors (13620301286).

22121351194 is a wasteful number, since it uses less digits than its factorization.

22121351194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15512925.

The product of its digits is 4320, while the sum is 31.

The spelling of 22121351194 in words is "twenty-two billion, one hundred twenty-one million, three hundred fifty-one thousand, one hundred ninety-four".