2315222012 has 24 divisors (see below), whose sum is σ = 4077800496. Its totient is φ = 1150153088.

The previous prime is 2315221969. The next prime is 2315222033. The reversal of 2315222012 is 2102225132.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 749423 + ... + 752505.

It is an arithmetic number, because the mean of its divisors is an integer number (169908354).

Almost surely, 2^2315222012 is an apocalyptic number.

It is an amenable number.

2315222012 is a deficient number, since it is larger than the sum of its proper divisors (1762578484).

2315222012 is a wasteful number, since it uses less digits than its factorization.

2315222012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4237 (or 4235 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 2315222012 is about 48116.7539636663. The cubic root of 2315222012 is about 1322.9117716546.

Adding to 2315222012 its reverse (2102225132), we get a palindrome (4417447144).

The spelling of 2315222012 in words is "two billion, three hundred fifteen million, two hundred twenty-two thousand, twelve".