12098981115 has 24 divisors (see below), whose sum is σ = 22584765840. Its totient is φ = 5956421184.

The previous prime is 12098981099. The next prime is 12098981129. The reversal of 12098981115 is 51118989021.

It is not a de Polignac number, because 12098981115 - 2⁴ = 12098981099 is a prime.

It is a super-2 number, since 2×12098981115² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10340425 + ... + 10341594.

It is an arithmetic number, because the mean of its divisors is an integer number (941031910).

Almost surely, 2^12098981115 is an apocalyptic number.

12098981115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12098981115 is a deficient number, since it is larger than the sum of its proper divisors (10485784725).

12098981115 is a wasteful number, since it uses less digits than its factorization.

12098981115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20682043 (or 20682040 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 45.

The spelling of 12098981115 in words is "twelve billion, ninety-eight million, nine hundred eighty-one thousand, one hundred fifteen".