45422021100 has 72 divisors (see below), whose sum is σ = 131591733840. Its totient is φ = 12096807680.

The previous prime is 45422021089. The next prime is 45422021101. The reversal of 45422021100 is 112022454.

45422021100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (45422021101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 133966 + ... + 329834.

It is an arithmetic number, because the mean of its divisors is an integer number (1827662970).

Almost surely, 2^45422021100 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 45422021100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65795866920).

45422021100 is an abundant number, since it is smaller than the sum of its proper divisors (86169712740).

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

45422021100 is a wasteful number, since it uses less digits than its factorization.

45422021100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196659 (or 196652 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

Adding to 45422021100 its reverse (112022454), we get a palindrome (45534043554).

The spelling of 45422021100 in words is "forty-five billion, four hundred twenty-two million, twenty-one thousand, one hundred".