40221232188 has 24 divisors (see below), whose sum is σ = 95171368320. Its totient is φ = 13218245040.

The previous prime is 40221232187. The next prime is 40221232213. The reversal of 40221232188 is 88123212204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40221232187) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23603158 + ... + 23604861.

It is an arithmetic number, because the mean of its divisors is an integer number (3965473680).

Almost surely, 2^40221232188 is an apocalyptic number.

It is an amenable number.

40221232188 is an abundant number, since it is smaller than the sum of its proper divisors (54950136132).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40221232188 is a wasteful number, since it uses less digits than its factorization.

40221232188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47208097 (or 47208095 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 33.

The spelling of 40221232188 in words is "forty billion, two hundred twenty-one million, two hundred thirty-two thousand, one hundred eighty-eight".