21022002339 has 16 divisors (see below), whose sum is σ = 30190401024. Its totient is φ = 12934490400.

The previous prime is 21022002319. The next prime is 21022002377. The reversal of 21022002339 is 93320022012.

It is not a de Polignac number, because 21022002339 - 2⁹ = 21022001827 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21022002319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 215254 + ... + 297284.

It is an arithmetic number, because the mean of its divisors is an integer number (1886900064).

Almost surely, 2^21022002339 is an apocalyptic number.

21022002339 is a deficient number, since it is larger than the sum of its proper divisors (9168398685).

21022002339 is a wasteful number, since it uses less digits than its factorization.

21022002339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88618.

The product of its (nonzero) digits is 1296, while the sum is 24.

The spelling of 21022002339 in words is "twenty-one billion, twenty-two million, two thousand, three hundred thirty-nine".