21222002319 has 32 divisors (see below), whose sum is σ = 33893130240. Its totient is φ = 11548444512.

The previous prime is 21222002303. The next prime is 21222002323. The reversal of 21222002319 is 91320022212.

It is not a de Polignac number, because 21222002319 - 2⁴ = 21222002303 is a prime.

It is a super-2 number, since 2×21222002319² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21222002359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12862 + ... + 206420.

It is an arithmetic number, because the mean of its divisors is an integer number (1059160320).

Almost surely, 2^21222002319 is an apocalyptic number.

21222002319 is a deficient number, since it is larger than the sum of its proper divisors (12671127921).

21222002319 is a wasteful number, since it uses less digits than its factorization.

21222002319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193819.

The product of its (nonzero) digits is 864, while the sum is 24.

The spelling of 21222002319 in words is "twenty-one billion, two hundred twenty-two million, two thousand, three hundred nineteen".