21024545322 has 16 divisors (see below), whose sum is σ = 45871735392. Its totient is φ = 6371074320.

The previous prime is 21024545281. The next prime is 21024545401. The reversal of 21024545322 is 22354542012.

It is a self number, because there is not a number n which added to its sum of digits gives 21024545322.

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, 159276793 + ... + 159276924.

It is an arithmetic number, because the mean of its divisors is an integer number (2866983462).

Almost surely, 2^21024545322 is an apocalyptic number.

21024545322 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21024545322 is an abundant number, since it is smaller than the sum of its proper divisors (24847190070).

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

21024545322 is a wasteful number, since it uses less digits than its factorization.

21024545322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318553733.

The product of its (nonzero) digits is 19200, while the sum is 30.

The spelling of 21024545322 in words is "twenty-one billion, twenty-four million, five hundred forty-five thousand, three hundred twenty-two".