21196433219 has 32 divisors (see below), whose sum is σ = 24148938240. Its totient is φ = 18457452288.

The previous prime is 21196433213. The next prime is 21196433243. The reversal of 21196433219 is 91233469112.

It is a cyclic number.

It is not a de Polignac number, because 21196433219 - 2²⁸ = 20927997763 is a prime.

It is a super-2 number, since 2×21196433219² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21196433213) 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, 13916792 + ... + 13918314.

It is an arithmetic number, because the mean of its divisors is an integer number (754654320).

Almost surely, 2^21196433219 is an apocalyptic number.

21196433219 is a deficient number, since it is larger than the sum of its proper divisors (2952505021).

21196433219 is a wasteful number, since it uses less digits than its factorization.

21196433219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2171.

The product of its digits is 69984, while the sum is 41.

The spelling of 21196433219 in words is "twenty-one billion, one hundred ninety-six million, four hundred thirty-three thousand, two hundred nineteen".