12200402647 has 24 divisors (see below), whose sum is σ = 13022220960. Its totient is φ = 11426775360.

The previous prime is 12200402639. The next prime is 12200402651. The reversal of 12200402647 is 74620400221.

It is a happy number.

It is not a de Polignac number, because 12200402647 - 2³ = 12200402639 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12200402657) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5895729 + ... + 5897797.

It is an arithmetic number, because the mean of its divisors is an integer number (542592540).

Almost surely, 2^12200402647 is an apocalyptic number.

12200402647 is a deficient number, since it is larger than the sum of its proper divisors (821818313).

12200402647 is a wasteful number, since it uses less digits than its factorization.

12200402647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2343 (or 2320 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 28.

Adding to 12200402647 its reverse (74620400221), we get a palindrome (86820802868).

It can be divided in two parts, 12200402 and 647, that added together give a square (12201049 = 3493²).

The spelling of 12200402647 in words is "twelve billion, two hundred million, four hundred two thousand, six hundred forty-seven".