12221012211101 has 4 divisors (see below), whose sum is σ = 12308933162400. Its totient is φ = 12133091259804.

The previous prime is 12221012211041. The next prime is 12221012211119. The reversal of 12221012211101 is 10111221012221.

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-12221012211101 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12221012211101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221012211601) 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, 43960475441 + ... + 43960475718.

It is an arithmetic number, because the mean of its divisors is an integer number (3077233290600).

Almost surely, 2^{12221012211101} is an apocalyptic number.

It is an amenable number.

12221012211101 is a deficient number, since it is larger than the sum of its proper divisors (87920951299).

12221012211101 is an equidigital number, since it uses as much as digits as its factorization.

12221012211101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87920951298.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 12221012211101 its reverse (10111221012221), we get a palindrome (22332233223322).

The spelling of 12221012211101 in words is "twelve trillion, two hundred twenty-one billion, twelve million, two hundred eleven thousand, one hundred one".