12201213243 has 16 divisors (see below), whose sum is σ = 16443348480. Its totient is φ = 8046775104.

The previous prime is 12201213221. The next prime is 12201213251. The reversal of 12201213243 is 34231210221.

It is not a de Polignac number, because 12201213243 - 2⁶ = 12201213179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12201213253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 283663 + ... + 323831.

It is an arithmetic number, because the mean of its divisors is an integer number (1027709280).

Almost surely, 2^12201213243 is an apocalyptic number.

12201213243 is a deficient number, since it is larger than the sum of its proper divisors (4242135237).

12201213243 is a wasteful number, since it uses less digits than its factorization.

12201213243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41258.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 12201213243 its reverse (34231210221), we get a palindrome (46432423464).

The spelling of 12201213243 in words is "twelve billion, two hundred one million, two hundred thirteen thousand, two hundred forty-three".