21002200322 has 16 divisors (see below), whose sum is σ = 32474286720. Its totient is φ = 10181614608.

The previous prime is 21002200321. The next prime is 21002200327. The reversal of 21002200322 is 22300220012.

It is a junction number, because it is equal to n+sod(n) for n = 21002200297 and 21002200306.

It is not an unprimeable number, because it can be changed into a prime (21002200321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1033997 + ... + 1054112.

It is an arithmetic number, because the mean of its divisors is an integer number (2029642920).

Almost surely, 2^21002200322 is an apocalyptic number.

21002200322 is a deficient number, since it is larger than the sum of its proper divisors (11472086398).

21002200322 is a wasteful number, since it uses less digits than its factorization.

21002200322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2088265.

The product of its (nonzero) digits is 96, while the sum is 14.

Adding to 21002200322 its reverse (22300220012), we get a palindrome (43302420334).

The spelling of 21002200322 in words is "twenty-one billion, two million, two hundred thousand, three hundred twenty-two".