12197999754001 has 4 divisors (see below), whose sum is σ = 12198255906100. Its totient is φ = 12197743601904.

The previous prime is 12197999753977. The next prime is 12197999754047. The reversal of 12197999754001 is 10045799979121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2161782090000 + 10036217664001 = 1470300^2 + 3167999^2 .

It is a cyclic number.

It is not a de Polignac number, because 12197999754001 - 2²⁷ = 12197865536273 is a prime.

It is a super-4 number, since 4×12197999754001⁴ (a number of 53 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12197999754301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128004606 + ... + 128099863.

It is an arithmetic number, because the mean of its divisors is an integer number (3049563976525).

Almost surely, 2^{12197999754001} is an apocalyptic number.

It is an amenable number.

12197999754001 is a deficient number, since it is larger than the sum of its proper divisors (256152099).

12197999754001 is an equidigital number, since it uses as much as digits as its factorization.

12197999754001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256152098.

The product of its (nonzero) digits is 12859560, while the sum is 64.

The spelling of 12197999754001 in words is "twelve trillion, one hundred ninety-seven billion, nine hundred ninety-nine million, seven hundred fifty-four thousand, one".