12161026250 has 40 divisors (see below), whose sum is σ = 22897370496. Its totient is φ = 4842486000.

The previous prime is 12161026201. The next prime is 12161026261. The reversal of 12161026250 is 5262016121.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 256937 + ... + 300563.

Almost surely, 2^12161026250 is an apocalyptic number.

12161026250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12161026250 is a deficient number, since it is larger than the sum of its proper divisors (10736344246).

12161026250 is an equidigital number, since it uses as much as digits as its factorization.

12161026250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43872 (or 43857 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

The spelling of 12161026250 in words is "twelve billion, one hundred sixty-one million, twenty-six thousand, two hundred fifty".