12202399 has 4 divisors (see below), whose sum is σ = 13311720. Its totient is φ = 11093080.

The previous prime is 12202381. The next prime is 12202423. The reversal of 12202399 is 99320221.

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

It is a cyclic number.

It is not a de Polignac number, because 12202399 - 2⁵ = 12202367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12202319) 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, 554644 + ... + 554665.

It is an arithmetic number, because the mean of its divisors is an integer number (3327930).

Almost surely, 2^12202399 is an apocalyptic number.

12202399 is a deficient number, since it is larger than the sum of its proper divisors (1109321).

12202399 is a wasteful number, since it uses less digits than its factorization.

12202399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1109320.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 12202399 is about 3493.1932382850. The cubic root of 12202399 is about 230.2228401078. Note that the first 3 decimals are identical.

The spelling of 12202399 in words is "twelve million, two hundred two thousand, three hundred ninety-nine".