111221222201 has 8 divisors (see below), whose sum is σ = 113844057984. Its totient is φ = 108609070960.

The previous prime is 111221222183. The next prime is 111221222219. The reversal of 111221222201 is 102222122111.

It is an interprime number because it is at equal distance from previous prime (111221222183) and next prime (111221222219).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111221222201 - 2²² = 111217027897 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 111221222201.

It is not an unprimeable number, because it can be changed into a prime (111221222221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2650070 + ... + 2691711.

It is an arithmetic number, because the mean of its divisors is an integer number (14230507248).

Almost surely, 2^111221222201 is an apocalyptic number.

It is an amenable number.

111221222201 is a deficient number, since it is larger than the sum of its proper divisors (2622835783).

111221222201 is an equidigital number, since it uses as much as digits as its factorization.

111221222201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5342271.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 111221222201 its reverse (102222122111), we get a palindrome (213443344312).

The spelling of 111221222201 in words is "one hundred eleven billion, two hundred twenty-one million, two hundred twenty-two thousand, two hundred one".