12209203797 has 32 divisors (see below), whose sum is σ = 19117504512. Its totient is φ = 6784513344.

The previous prime is 12209203793. The next prime is 12209203823. The reversal of 12209203797 is 79730290221.

It is not a de Polignac number, because 12209203797 - 2² = 12209203793 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12209203793) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2206248 + ... + 2211774.

It is an arithmetic number, because the mean of its divisors is an integer number (597422016).

Almost surely, 2^12209203797 is an apocalyptic number.

It is an amenable number.

12209203797 is a deficient number, since it is larger than the sum of its proper divisors (6908300715).

12209203797 is a wasteful number, since it uses less digits than its factorization.

12209203797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8417.

The product of its (nonzero) digits is 95256, while the sum is 42.

The spelling of 12209203797 in words is "twelve billion, two hundred nine million, two hundred three thousand, seven hundred ninety-seven".