12200121010001 has 4 divisors (see below), whose sum is σ = 12354552921600. Its totient is φ = 12045689098404.

The previous prime is 12200121009991. The next prime is 12200121010067. The reversal of 12200121010001 is 10001012100221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12200121010001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12200121010901) 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, 77215955681 + ... + 77215955838.

It is an arithmetic number, because the mean of its divisors is an integer number (3088638230400).

Almost surely, 2^{12200121010001} is an apocalyptic number.

It is an amenable number.

12200121010001 is a deficient number, since it is larger than the sum of its proper divisors (154431911599).

12200121010001 is an equidigital number, since it uses as much as digits as its factorization.

12200121010001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154431911598.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 12200121010001 its reverse (10001012100221), we get a palindrome (22201133110222).

The spelling of 12200121010001 in words is "twelve trillion, two hundred billion, one hundred twenty-one million, ten thousand, one".