22440521216 has 40 divisors (see below), whose sum is σ = 47197087080. Its totient is φ = 10629715968.

The previous prime is 22440521177. The next prime is 22440521219. The reversal of 22440521216 is 61212504422.

It is a super-2 number, since 2×22440521216² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22440521219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1143671 + ... + 1163126.

It is an arithmetic number, because the mean of its divisors is an integer number (1179927177).

Almost surely, 2^22440521216 is an apocalyptic number.

It is an amenable number.

22440521216 is an abundant number, since it is smaller than the sum of its proper divisors (24756565864).

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

22440521216 is an equidigital number, since it uses as much as digits as its factorization.

22440521216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2306834 (or 2306818 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

The spelling of 22440521216 in words is "twenty-two billion, four hundred forty million, five hundred twenty-one thousand, two hundred sixteen".