21232224179 has 2 divisors, whose sum is σ = 21232224180. Its totient is φ = 21232224178.

The previous prime is 21232224049. The next prime is 21232224191. The reversal of 21232224179 is 97142223212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21232224179 - 2³² = 16937256883 is a prime.

It is not a weakly prime, because it can be changed into another prime (21232223179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10616112089 + 10616112090.

It is an arithmetic number, because the mean of its divisors is an integer number (10616112090).

Almost surely, 2^21232224179 is an apocalyptic number.

21232224179 is a deficient number, since it is larger than the sum of its proper divisors (1).

21232224179 is an equidigital number, since it uses as much as digits as its factorization.

21232224179 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 35.

The spelling of 21232224179 in words is "twenty-one billion, two hundred thirty-two million, two hundred twenty-four thousand, one hundred seventy-nine".