22181979134 has 128 divisors (see below), whose sum is σ = 44325273600. Its totient is φ = 8095127040.

The previous prime is 22181979067. The next prime is 22181979173. The reversal of 22181979134 is 43197918122.

It is a super-2 number, since 2×22181979134² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11073377 + ... + 11075379.

It is an arithmetic number, because the mean of its divisors is an integer number (346291200).

Almost surely, 2^22181979134 is an apocalyptic number.

22181979134 is a deficient number, since it is larger than the sum of its proper divisors (22143294466).

22181979134 is a wasteful number, since it uses less digits than its factorization.

22181979134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2158.

The product of its digits is 217728, while the sum is 47.

The spelling of 22181979134 in words is "twenty-two billion, one hundred eighty-one million, nine hundred seventy-nine thousand, one hundred thirty-four".