12689797201 has 9 divisors (see below), whose sum is σ = 12804939849. Its totient is φ = 12575683764.

The previous prime is 12689797189. The next prime is 12689797213. The reversal of 12689797201 is 10279798621.

The square root of 12689797201 is 112649.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (12689797189) and next prime (12689797213).

It is not a de Polignac number, because 12689797201 - 2⁷ = 12689797073 is a prime.

It is a super-2 number, since 2×12689797201² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12689792201) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 14305980 + ... + 14306866.

Almost surely, 2^12689797201 is an apocalyptic number.

12689797201 is the 112649-th square number.

12689797201 is the 56325-th centered octagonal number.

It is an amenable number.

12689797201 is a deficient number, since it is larger than the sum of its proper divisors (115142648).

12689797201 is an frugal number, since it uses more digits than its factorization.

12689797201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2028 (or 1014 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 52.

The spelling of 12689797201 in words is "twelve billion, six hundred eighty-nine million, seven hundred ninety-seven thousand, two hundred one".