111022222001 has 4 divisors (see below), whose sum is σ = 111030010404. Its totient is φ = 111014433600.

The previous prime is 111022221943. The next prime is 111022222009. The reversal of 111022222001 is 100222220111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 788261776 + 110233960225 = 28076^2 + 332015^2 .

It is a cyclic number.

It is not a de Polignac number, because 111022222001 - 2²² = 111018027697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111022222009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3872780 + ... + 3901341.

It is an arithmetic number, because the mean of its divisors is an integer number (27757502601).

Almost surely, 2^111022222001 is an apocalyptic number.

It is an amenable number.

111022222001 is a deficient number, since it is larger than the sum of its proper divisors (7788403).

111022222001 is an equidigital number, since it uses as much as digits as its factorization.

111022222001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7788402.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 111022222001 its reverse (100222220111), we get a palindrome (211244442112).

The spelling of 111022222001 in words is "one hundred eleven billion, twenty-two million, two hundred twenty-two thousand, one".