112221121111001 has 32 divisors (see below), whose sum is σ = 135094820044800. Its totient is φ = 93084514059600.

The previous prime is 112221121110983. The next prime is 112221121111013. The reversal of 112221121111001 is 100111121122211.

It is not a de Polignac number, because 112221121111001 - 2¹⁴ = 112221121094617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (112221121111031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 609040556 + ... + 609224786.

It is an arithmetic number, because the mean of its divisors is an integer number (4221713126400).

Almost surely, 2^{112221121111001} is an apocalyptic number.

It is an amenable number.

112221121111001 is a deficient number, since it is larger than the sum of its proper divisors (22873698933799).

112221121111001 is an equidigital number, since it uses as much as digits as its factorization.

112221121111001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241570 (or 241556 counting only the distinct ones).

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

Adding to 112221121111001 its reverse (100111121122211), we get a palindrome (212332242233212).

The spelling of 112221121111001 in words is "one hundred twelve trillion, two hundred twenty-one billion, one hundred twenty-one million, one hundred eleven thousand, one".