12251545105 has 16 divisors (see below), whose sum is σ = 14965712640. Its totient is φ = 9626456448.

The previous prime is 12251545099. The next prime is 12251545121. The reversal of 12251545105 is 50154515221.

It is a cyclic number.

It is not a de Polignac number, because 12251545105 - 2⁵ = 12251545073 is a prime.

It is a super-2 number, since 2×12251545105² (a number of 21 digits) contains 22 as substring.

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, 17014 + ... + 157456.

It is an arithmetic number, because the mean of its divisors is an integer number (935357040).

Almost surely, 2^12251545105 is an apocalyptic number.

It is an amenable number.

12251545105 is a deficient number, since it is larger than the sum of its proper divisors (2714167535).

12251545105 is a wasteful number, since it uses less digits than its factorization.

12251545105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140760.

The product of its (nonzero) digits is 10000, while the sum is 31.

The spelling of 12251545105 in words is "twelve billion, two hundred fifty-one million, five hundred forty-five thousand, one hundred five".