12201002220021 has 16 divisors (see below), whose sum is σ = 16577344168704. Its totient is φ = 7979375278784.

The previous prime is 12201002219983. The next prime is 12201002220097. The reversal of 12201002220021 is 12002220010221.

It is a cyclic number.

It is not a de Polignac number, because 12201002220021 - 2⁷ = 12201002219893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12201002200021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4447101 + ... + 6646706.

It is an arithmetic number, because the mean of its divisors is an integer number (1036084010544).

Almost surely, 2^{12201002220021} is an apocalyptic number.

It is an amenable number.

12201002220021 is a deficient number, since it is larger than the sum of its proper divisors (4376341948683).

12201002220021 is a wasteful number, since it uses less digits than its factorization.

12201002220021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11100780.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 12201002220021 its reverse (12002220010221), we get a palindrome (24203222230242).

The spelling of 12201002220021 in words is "twelve trillion, two hundred one billion, two million, two hundred twenty thousand, twenty-one".