10312216215 has 16 divisors (see below), whose sum is σ = 18856624128. Its totient is φ = 4714155936.

The previous prime is 10312216193. The next prime is 10312216217. The reversal of 10312216215 is 51261221301.

It is a happy number.

It is not a de Polignac number, because 10312216215 - 2⁷ = 10312216087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10312216217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49105687 + ... + 49105896.

It is an arithmetic number, because the mean of its divisors is an integer number (1178539008).

Almost surely, 2^10312216215 is an apocalyptic number.

10312216215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

10312216215 is a deficient number, since it is larger than the sum of its proper divisors (8544407913).

10312216215 is an equidigital number, since it uses as much as digits as its factorization.

10312216215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98211598.

The product of its (nonzero) digits is 720, while the sum is 24.

Adding to 10312216215 its reverse (51261221301), we get a palindrome (61573437516).

The spelling of 10312216215 in words is "ten billion, three hundred twelve million, two hundred sixteen thousand, two hundred fifteen".