112101101211221 has 4 divisors (see below), whose sum is σ = 116975062133472. Its totient is φ = 107227140288972.

The previous prime is 112101101211167. The next prime is 112101101211227. The reversal of 112101101211221 is 122112101101211.

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 112101101211221 - 2²² = 112101097016917 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 112101101211221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112101101211227) 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, 2436980461091 + ... + 2436980461136.

It is an arithmetic number, because the mean of its divisors is an integer number (29243765533368).

Almost surely, 2^{112101101211221} is an apocalyptic number.

It is an amenable number.

112101101211221 is a deficient number, since it is larger than the sum of its proper divisors (4873960922251).

112101101211221 is an equidigital number, since it uses as much as digits as its factorization.

112101101211221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4873960922250.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 112101101211221 its reverse (122112101101211), we get a palindrome (234213202312432).

The spelling of 112101101211221 in words is "one hundred twelve trillion, one hundred one billion, one hundred one million, two hundred eleven thousand, two hundred twenty-one".