112001122221 has 4 divisors (see below), whose sum is σ = 149334829632. Its totient is φ = 74667414812.

The previous prime is 112001122217. The next prime is 112001122279. The reversal of 112001122221 is 122221100211.

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 112001122221 - 2² = 112001122217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 112001122221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112001122291) 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, 18666853701 + ... + 18666853706.

It is an arithmetic number, because the mean of its divisors is an integer number (37333707408).

Almost surely, 2^112001122221 is an apocalyptic number.

It is an amenable number.

112001122221 is a deficient number, since it is larger than the sum of its proper divisors (37333707411).

112001122221 is an equidigital number, since it uses as much as digits as its factorization.

112001122221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37333707410.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 112001122221 its reverse (122221100211), we get a palindrome (234222222432).

The spelling of 112001122221 in words is "one hundred twelve billion, one million, one hundred twenty-two thousand, two hundred twenty-one".