12115233225 has 36 divisors (see below), whose sum is σ = 22399732992. Its totient is φ = 6253020000.

The previous prime is 12115233223. The next prime is 12115233301. The reversal of 12115233225 is 52233251121.

It is not a de Polignac number, because 12115233225 - 2¹ = 12115233223 is a prime.

It is a super-2 number, since 2×12115233225² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12115233223) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 861501 + ... + 875450.

Almost surely, 2^12115233225 is an apocalyptic number.

12115233225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12115233225 is a deficient number, since it is larger than the sum of its proper divisors (10284499767).

12115233225 is a wasteful number, since it uses less digits than its factorization.

12115233225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1736998 (or 1736990 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

Adding to 12115233225 its reverse (52233251121), we get a palindrome (64348484346).

The spelling of 12115233225 in words is "twelve billion, one hundred fifteen million, two hundred thirty-three thousand, two hundred twenty-five".