22132221994 has 16 divisors (see below), whose sum is σ = 34188530688. Its totient is φ = 10737675792.

The previous prime is 22132221977. The next prime is 22132221997. The reversal of 22132221994 is 49912223122.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (22132221997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 380314 + ... + 434629.

It is an arithmetic number, because the mean of its divisors is an integer number (2136783168).

Almost surely, 2^22132221994 is an apocalyptic number.

22132221994 is a deficient number, since it is larger than the sum of its proper divisors (12056308694).

22132221994 is a wasteful number, since it uses less digits than its factorization.

22132221994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815349.

The product of its digits is 31104, while the sum is 37.

The spelling of 22132221994 in words is "twenty-two billion, one hundred thirty-two million, two hundred twenty-one thousand, nine hundred ninety-four".