12151278511801 has 16 divisors (see below), whose sum is σ = 14275737241920. Its totient is φ = 10196798973120.

The previous prime is 12151278511717. The next prime is 12151278511817. The reversal of 12151278511801 is 10811587215121.

It is a cyclic number.

It is not a de Polignac number, because 12151278511801 - 2²⁹ = 12150741640889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12151278514801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25615510 + ... + 26085568.

It is an arithmetic number, because the mean of its divisors is an integer number (892233577620).

Almost surely, 2^{12151278511801} is an apocalyptic number.

12151278511801 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12151278511801 is a deficient number, since it is larger than the sum of its proper divisors (2124458730119).

12151278511801 is a wasteful number, since it uses less digits than its factorization.

12151278511801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650856.

The product of its (nonzero) digits is 44800, while the sum is 43.

The spelling of 12151278511801 in words is "twelve trillion, one hundred fifty-one billion, two hundred seventy-eight million, five hundred eleven thousand, eight hundred one".