12221202111101 has 4 divisors (see below), whose sum is σ = 12222952254432. Its totient is φ = 12219451967772.

The previous prime is 12221202111073. The next prime is 12221202111113. The reversal of 12221202111101 is 10111120212221.

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-12221202111101 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 12221202111101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221202113101) 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, 875061191 + ... + 875075156.

It is an arithmetic number, because the mean of its divisors is an integer number (3055738063608).

Almost surely, 2^{12221202111101} is an apocalyptic number.

It is an amenable number.

12221202111101 is a deficient number, since it is larger than the sum of its proper divisors (1750143331).

12221202111101 is an equidigital number, since it uses as much as digits as its factorization.

12221202111101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1750143330.

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

Adding to 12221202111101 its reverse (10111120212221), we get a palindrome (22332322323322).

The spelling of 12221202111101 in words is "twelve trillion, two hundred twenty-one billion, two hundred two million, one hundred eleven thousand, one hundred one".