22315212507 has 8 divisors (see below), whose sum is σ = 34004133376. Its totient is φ = 12751549992.

The previous prime is 22315212497. The next prime is 22315212529. The reversal of 22315212507 is 70521251322.

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

It is not a de Polignac number, because 22315212507 - 2¹² = 22315208411 is a prime.

It is a super-3 number, since 3×22315212507³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22315216507) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 531314563 + ... + 531314604.

It is an arithmetic number, because the mean of its divisors is an integer number (4250516672).

Almost surely, 2^22315212507 is an apocalyptic number.

22315212507 is a deficient number, since it is larger than the sum of its proper divisors (11688920869).

22315212507 is a wasteful number, since it uses less digits than its factorization.

22315212507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1062629177.

The product of its (nonzero) digits is 8400, while the sum is 30.

Adding to 22315212507 its reverse (70521251322), we get a palindrome (92836463829).

The spelling of 22315212507 in words is "twenty-two billion, three hundred fifteen million, two hundred twelve thousand, five hundred seven".