12250032155 has 4 divisors (see below), whose sum is σ = 14700038592. Its totient is φ = 9800025720.

The previous prime is 12250032143. The next prime is 12250032173. The reversal of 12250032155 is 55123005221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55123005221 = 39979 ⋅1378799.

It is not a de Polignac number, because 12250032155 - 2¹⁸ = 12249770011 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1225003211 + ... + 1225003220.

It is an arithmetic number, because the mean of its divisors is an integer number (3675009648).

Almost surely, 2^12250032155 is an apocalyptic number.

12250032155 is a deficient number, since it is larger than the sum of its proper divisors (2450006437).

12250032155 is an equidigital number, since it uses as much as digits as its factorization.

12250032155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2450006436.

The product of its (nonzero) digits is 3000, while the sum is 26.

Adding to 12250032155 its reverse (55123005221), we get a palindrome (67373037376).

The spelling of 12250032155 in words is "twelve billion, two hundred fifty million, thirty-two thousand, one hundred fifty-five".