12215442310 has 16 divisors (see below), whose sum is σ = 23281196256. Its totient is φ = 4598754688.

The previous prime is 12215442257. The next prime is 12215442311. The reversal of 12215442310 is 1324451221.

It is a super-2 number, since 2×12215442310² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12215442311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35927602 + ... + 35927941.

It is an arithmetic number, because the mean of its divisors is an integer number (1455074766).

Almost surely, 2^12215442310 is an apocalyptic number.

12215442310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12215442310 is a deficient number, since it is larger than the sum of its proper divisors (11065753946).

12215442310 is a wasteful number, since it uses less digits than its factorization.

12215442310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71855567.

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 12215442310 its reverse (1324451221), we get a palindrome (13539893531).

The spelling of 12215442310 in words is "twelve billion, two hundred fifteen million, four hundred forty-two thousand, three hundred ten".