12212002220101 has 4 divisors (see below), whose sum is σ = 12212010407392. Its totient is φ = 12211994032812.

The previous prime is 12212002220087. The next prime is 12212002220113. The reversal of 12212002220101 is 10102220021221.

It is a happy number.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12212002220101 - 2³³ = 12203412285509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212302220101) 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, 1151355 + ... + 5074408.

It is an arithmetic number, because the mean of its divisors is an integer number (3053002601848).

Almost surely, 2^{12212002220101} is an apocalyptic number.

It is an amenable number.

12212002220101 is a deficient number, since it is larger than the sum of its proper divisors (8187291).

12212002220101 is an equidigital number, since it uses as much as digits as its factorization.

12212002220101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8187290.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12212002220101 its reverse (10102220021221), we get a palindrome (22314222241322).

The spelling of 12212002220101 in words is "twelve trillion, two hundred twelve billion, two million, two hundred twenty thousand, one hundred one".