45021113220 has 192 divisors, whose sum is σ = 132076707840. Its totient is φ = 11444160000.

The previous prime is 45021113173. The next prime is 45021113273. The reversal of 45021113220 is 2231112054.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 59947845 + ... + 59948595.

It is an arithmetic number, because the mean of its divisors is an integer number (687899520).

Almost surely, 2^45021113220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45021113220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66038353920).

45021113220 is an abundant number, since it is smaller than the sum of its proper divisors (87055594620).

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

45021113220 is a wasteful number, since it uses less digits than its factorization.

45021113220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1186 (or 1184 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 45021113220 its reverse (2231112054), we get a palindrome (47252225274).

The spelling of 45021113220 in words is "forty-five billion, twenty-one million, one hundred thirteen thousand, two hundred twenty".