21302122301999 has 32 divisors (see below), whose sum is σ = 26704763043840. Its totient is φ = 16507800460800.

The previous prime is 21302122301959. The next prime is 21302122302001. The reversal of 21302122301999 is 99910322120312.

It is a happy number.

It is not a de Polignac number, because 21302122301999 - 2²⁸ = 21301853866543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21302122301959) 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, 14849042 + ... + 16220304.

It is an arithmetic number, because the mean of its divisors is an integer number (834523845120).

Almost surely, 2^{21302122301999} is an apocalyptic number.

21302122301999 is a deficient number, since it is larger than the sum of its proper divisors (5402640741841).

21302122301999 is a wasteful number, since it uses less digits than its factorization.

21302122301999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1372391.

The product of its (nonzero) digits is 104976, while the sum is 44.

The spelling of 21302122301999 in words is "twenty-one trillion, three hundred two billion, one hundred twenty-two million, three hundred one thousand, nine hundred ninety-nine".