40221120204 has 18 divisors (see below), whose sum is σ = 101670053940. Its totient is φ = 13407040056.

The previous prime is 40221120187. The next prime is 40221120223. The reversal of 40221120204 is 40202112204.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 558626634 + ... + 558626705.

It is an arithmetic number, because the mean of its divisors is an integer number (5648336330).

Almost surely, 2^40221120204 is an apocalyptic number.

It is an amenable number.

40221120204 is an abundant number, since it is smaller than the sum of its proper divisors (61448933736).

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

40221120204 is a wasteful number, since it uses less digits than its factorization.

40221120204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1117253349 (or 1117253344 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 40221120204 its reverse (40202112204), we get a palindrome (80423232408).

The spelling of 40221120204 in words is "forty billion, two hundred twenty-one million, one hundred twenty thousand, two hundred four".