111220201020233 has 4 divisors (see below), whose sum is σ = 111571053389700. Its totient is φ = 110869348650768.

The previous prime is 111220201020199. The next prime is 111220201020251. The reversal of 111220201020233 is 332020102022111.

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 26282817062329 + 84937383957904 = 5126677^2 + 9216148^2 .

It is a cyclic number.

It is not a de Polignac number, because 111220201020233 - 2¹⁸ = 111220200758089 is a prime.

It is a super-2 number, since 2×111220201020233² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111220201020433) 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, 175426184258 + ... + 175426184891.

It is an arithmetic number, because the mean of its divisors is an integer number (27892763347425).

Almost surely, 2^{111220201020233} is an apocalyptic number.

It is an amenable number.

111220201020233 is a deficient number, since it is larger than the sum of its proper divisors (350852369467).

111220201020233 is an equidigital number, since it uses as much as digits as its factorization.

111220201020233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350852369466.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 111220201020233 its reverse (332020102022111), we get a palindrome (443240303042344).

The spelling of 111220201020233 in words is "one hundred eleven trillion, two hundred twenty billion, two hundred one million, twenty thousand, two hundred thirty-three".