12220121020201 has 4 divisors (see below), whose sum is σ = 12223543068304. Its totient is φ = 12216698972100.

The previous prime is 12220121020193. The next prime is 12220121020207. The reversal of 12220121020201 is 10202012102221.

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.

It is a cyclic number.

It is not a de Polignac number, because 12220121020201 - 2³ = 12220121020193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12220121020207) 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, 1711018695 + ... + 1711025836.

It is an arithmetic number, because the mean of its divisors is an integer number (3055885767076).

Almost surely, 2^{12220121020201} is an apocalyptic number.

It is an amenable number.

12220121020201 is a deficient number, since it is larger than the sum of its proper divisors (3422048103).

12220121020201 is an equidigital number, since it uses as much as digits as its factorization.

12220121020201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3422048102.

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

Adding to 12220121020201 its reverse (10202012102221), we get a palindrome (22422133122422).

The spelling of 12220121020201 in words is "twelve trillion, two hundred twenty billion, one hundred twenty-one million, twenty thousand, two hundred one".