12151192401 has 12 divisors (see below), whose sum is σ = 18201786512. Its totient is φ = 8100794772.

The previous prime is 12151192397. The next prime is 12151192409. The reversal of 12151192401 is 10429115121.

12151192401 is a `hidden beast` number, since 1 + 21 + 51 + 192 + 401 = 666.

It is not a de Polignac number, because 12151192401 - 2² = 12151192397 is a prime.

It is a super-2 number, since 2×12151192401² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12151192409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25002211 + ... + 25002696.

Almost surely, 2^12151192401 is an apocalyptic number.

It is an amenable number.

12151192401 is a deficient number, since it is larger than the sum of its proper divisors (6050594111).

12151192401 is an frugal number, since it uses more digits than its factorization.

12151192401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50004922 (or 50004910 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 27.

The spelling of 12151192401 in words is "twelve billion, one hundred fifty-one million, one hundred ninety-two thousand, four hundred one".