22144429025 has 12 divisors (see below), whose sum is σ = 28128827244. Its totient is φ = 17283456000.

The previous prime is 22144429019. The next prime is 22144429063. The reversal of 22144429025 is 52092444122.

It can be written as a sum of positive squares in 6 ways, for example, as 2107177216 + 20037251809 = 45904^2 + 141553^2 .

It is not a de Polignac number, because 22144429025 - 2²⁰ = 22143380449 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10801136 + ... + 10803185.

It is an arithmetic number, because the mean of its divisors is an integer number (2344068937).

Almost surely, 2^22144429025 is an apocalyptic number.

22144429025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22144429025 is a deficient number, since it is larger than the sum of its proper divisors (5984398219).

22144429025 is a wasteful number, since it uses less digits than its factorization.

22144429025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21604372 (or 21604367 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 35.

The spelling of 22144429025 in words is "twenty-two billion, one hundred forty-four million, four hundred twenty-nine thousand, twenty-five".