22143501249 has 8 divisors (see below), whose sum is σ = 31261413600. Its totient is φ = 13893961536.

The previous prime is 22143501173. The next prime is 22143501257. The reversal of 22143501249 is 94210534122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22143501249 - 2¹² = 22143497153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22143501649) 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 in 7 ways as a sum of consecutive naturals, for example, 217093099 + ... + 217093200.

It is an arithmetic number, because the mean of its divisors is an integer number (3907676700).

Almost surely, 2^22143501249 is an apocalyptic number.

It is an amenable number.

22143501249 is a deficient number, since it is larger than the sum of its proper divisors (9117912351).

22143501249 is a wasteful number, since it uses less digits than its factorization.

22143501249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434186319.

The product of its (nonzero) digits is 17280, while the sum is 33.

The spelling of 22143501249 in words is "twenty-two billion, one hundred forty-three million, five hundred one thousand, two hundred forty-nine".