45222224720 has 40 divisors (see below), whose sum is σ = 105165909576. Its totient is φ = 18084720128.

The previous prime is 45222224717. The next prime is 45222224737. The reversal of 45222224720 is 2742222254.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5079697984 + 40142526736 = 71272^2 + 200356^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 296534 + ... + 422346.

Almost surely, 2^45222224720 is an apocalyptic number.

45222224720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45222224720 is an abundant number, since it is smaller than the sum of its proper divisors (59943684856).

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

45222224720 is a wasteful number, since it uses less digits than its factorization.

45222224720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130319 (or 130313 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 32.

Adding to 45222224720 its reverse (2742222254), we get a palindrome (47964446974).

The spelling of 45222224720 in words is "forty-five billion, two hundred twenty-two million, two hundred twenty-four thousand, seven hundred twenty".