45221520100 has 36 divisors (see below), whose sum is σ = 98444283364. Its totient is φ = 18030804480.

The previous prime is 45221520073. The next prime is 45221520101. The reversal of 45221520100 is 102512254.

It can be written as a sum of positive squares in 6 ways, for example, as 7759143396 + 37462376704 = 88086^2 + 193552^2 .

It is not an unprimeable number, because it can be changed into a prime (45221520101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 691089 + ... + 753688.

Almost surely, 2^45221520100 is an apocalyptic number.

It is an amenable number.

45221520100 is an abundant number, since it is smaller than the sum of its proper divisors (53222763264).

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

45221520100 is a wasteful number, since it uses less digits than its factorization.

45221520100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1445104 (or 1445097 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The spelling of 45221520100 in words is "forty-five billion, two hundred twenty-one million, five hundred twenty thousand, one hundred".