12200012001 has 12 divisors (see below), whose sum is σ = 18229903380. Its totient is φ = 7852881120.

The previous prime is 12200011997. The next prime is 12200012021. The reversal of 12200012001 is 10021000221.

It can be written as a sum of positive squares in 2 ways, for example, as 5508608400 + 6691403601 = 74220^2 + 81801^2 .

It is not a de Polignac number, because 12200012001 - 2² = 12200011997 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12200012021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23371410 + ... + 23371931.

It is an arithmetic number, because the mean of its divisors is an integer number (1519158615).

Almost surely, 2^12200012001 is an apocalyptic number.

It is an amenable number.

12200012001 is a deficient number, since it is larger than the sum of its proper divisors (6029891379).

12200012001 is a wasteful number, since it uses less digits than its factorization.

12200012001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46743376 (or 46743373 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 12200012001 its reverse (10021000221), we get a palindrome (22221012222).

The spelling of 12200012001 in words is "twelve billion, two hundred million, twelve thousand, one".