111220103232001 has 4 divisors (see below), whose sum is σ = 111221010067392. Its totient is φ = 111219196396612.

The previous prime is 111220103231969. The next prime is 111220103232083. The reversal of 111220103232001 is 100232301022111.

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 111220103232001 - 2⁵ = 111220103231969 is a prime.

It is a super-2 number, since 2×111220103232001² (a number of 29 digits) contains 22 as substring.

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 111220103232001.

It is not an unprimeable number, because it can be changed into a prime (111220103230001) 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, 453233701 + ... + 453479026.

It is an arithmetic number, because the mean of its divisors is an integer number (27805252516848).

Almost surely, 2^{111220103232001} is an apocalyptic number.

It is an amenable number.

111220103232001 is a deficient number, since it is larger than the sum of its proper divisors (906835391).

111220103232001 is an equidigital number, since it uses as much as digits as its factorization.

111220103232001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906835390.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 111220103232001 its reverse (100232301022111), we get a palindrome (211452404254112).

The spelling of 111220103232001 in words is "one hundred eleven trillion, two hundred twenty billion, one hundred three million, two hundred thirty-two thousand, one".