21322552451199 has 32 divisors (see below), whose sum is σ = 30171087688896. Its totient is φ = 13348346019840.

The previous prime is 21322552451159. The next prime is 21322552451257. The reversal of 21322552451199 is 99115425522312.

It is not a de Polignac number, because 21322552451199 - 2⁷ = 21322552451071 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21322552451159) 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, 296452389 + ... + 296524305.

It is an arithmetic number, because the mean of its divisors is an integer number (942846490278).

Almost surely, 2^{21322552451199} is an apocalyptic number.

21322552451199 is a deficient number, since it is larger than the sum of its proper divisors (8848535237697).

21322552451199 is a wasteful number, since it uses less digits than its factorization.

21322552451199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85115.

The product of its digits is 1944000, while the sum is 51.

The spelling of 21322552451199 in words is "twenty-one trillion, three hundred twenty-two billion, five hundred fifty-two million, four hundred fifty-one thousand, one hundred ninety-nine".