12299031801 has 27 divisors (see below), whose sum is σ = 20669634063. Its totient is φ = 7026687360.

The previous prime is 12299031793. The next prime is 12299031821. The reversal of 12299031801 is 10813099221.

The square root of 12299031801 is 110901.

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

It can be written as a sum of positive squares in only one way, i.e., 1624009401 + 10675022400 = 40299^2 + 103320^2 .

It is not a de Polignac number, because 12299031801 - 2³ = 12299031793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12299031821) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 2326281 + ... + 2331561.

Almost surely, 2^12299031801 is an apocalyptic number.

12299031801 is the 110901-st square number.

12299031801 is the 55451-st centered octagonal number.

It is an amenable number.

12299031801 is a deficient number, since it is larger than the sum of its proper divisors (8370602262).

12299031801 is an frugal number, since it uses more digits than its factorization.

12299031801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10582 (or 5291 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 36.

Multiplying 12299031801 by its sum of digits (36), we get a square (442765144836 = 665406²).

The spelling of 12299031801 in words is "twelve billion, two hundred ninety-nine million, thirty-one thousand, eight hundred one".