12115553110 has 32 divisors (see below), whose sum is σ = 23045199840. Its totient is φ = 4573274112.

The previous prime is 12115553069. The next prime is 12115553123. The reversal of 12115553110 is 1135551121.

It is a super-2 number, since 2×12115553110² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75229 + ... + 172888.

It is an arithmetic number, because the mean of its divisors is an integer number (720162495).

Almost surely, 2^12115553110 is an apocalyptic number.

12115553110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12115553110 is a deficient number, since it is larger than the sum of its proper divisors (10929646730).

12115553110 is a wasteful number, since it uses less digits than its factorization.

12115553110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248400.

The product of its (nonzero) digits is 750, while the sum is 25.

The spelling of 12115553110 in words is "twelve billion, one hundred fifteen million, five hundred fifty-three thousand, one hundred ten".