21011202322 has 64 divisors (see below), whose sum is σ = 35918588160. Its totient is φ = 9130777600.

The previous prime is 21011202319. The next prime is 21011202323. The reversal of 21011202322 is 22320211012.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21011202296 and 21011202305.

It is not an unprimeable number, because it can be changed into a prime (21011202323) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41771523 + ... + 41772025.

It is an arithmetic number, because the mean of its divisors is an integer number (561227940).

Almost surely, 2^21011202322 is an apocalyptic number.

21011202322 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21011202322 is a deficient number, since it is larger than the sum of its proper divisors (14907385838).

21011202322 is a wasteful number, since it uses less digits than its factorization.

21011202322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1059.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 21011202322 its reverse (22320211012), we get a palindrome (43331413334).

The spelling of 21011202322 in words is "twenty-one billion, eleven million, two hundred two thousand, three hundred twenty-two".