12157522201 has 8 divisors (see below), whose sum is σ = 13266951264. Its totient is φ = 11048793120.

The previous prime is 12157522177. The next prime is 12157522217. The reversal of 12157522201 is 10222575121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12157522201 - 2⁷ = 12157522073 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12157522201.

It is not an unprimeable number, because it can be changed into a prime (12157522261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138340 + ... + 208453.

It is an arithmetic number, because the mean of its divisors is an integer number (1658368908).

Almost surely, 2^12157522201 is an apocalyptic number.

12157522201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12157522201 is a deficient number, since it is larger than the sum of its proper divisors (1109429063).

12157522201 is a wasteful number, since it uses less digits than its factorization.

12157522201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349991.

The product of its (nonzero) digits is 2800, while the sum is 28.

The spelling of 12157522201 in words is "twelve billion, one hundred fifty-seven million, five hundred twenty-two thousand, two hundred one".