22149939329 has 4 divisors (see below), whose sum is σ = 25314216384. Its totient is φ = 18985662276.

The previous prime is 22149939283. The next prime is 22149939349. The reversal of 22149939329 is 92393994122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 92393994122 = 2 ⋅46196997061.

It is not a de Polignac number, because 22149939329 - 2³² = 17854972033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22149939349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1582138517 + ... + 1582138530.

It is an arithmetic number, because the mean of its divisors is an integer number (6328554096).

Almost surely, 2^22149939329 is an apocalyptic number.

It is an amenable number.

22149939329 is a deficient number, since it is larger than the sum of its proper divisors (3164277055).

22149939329 is an equidigital number, since it uses as much as digits as its factorization.

22149939329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3164277054.

The product of its digits is 1889568, while the sum is 53.

The spelling of 22149939329 in words is "twenty-two billion, one hundred forty-nine million, nine hundred thirty-nine thousand, three hundred twenty-nine".