111220311212230 has 32 divisors (see below), whose sum is σ = 218396684909088. Its totient is φ = 40443668524800.

The previous prime is 111220311212207. The next prime is 111220311212237. The reversal of 111220311212230 is 32212113022111.

It is a happy number.

It is a super-2 number, since 2×111220311212230² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111220311212237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97692754 + ... + 98824666.

It is an arithmetic number, because the mean of its divisors is an integer number (6824896403409).

Almost surely, 2^{111220311212230} is an apocalyptic number.

111220311212230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111220311212230 is a deficient number, since it is larger than the sum of its proper divisors (107176373696858).

111220311212230 is a wasteful number, since it uses less digits than its factorization.

111220311212230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2025192.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 111220311212230 its reverse (32212113022111), we get a palindrome (143432424234341).

The spelling of 111220311212230 in words is "one hundred eleven trillion, two hundred twenty billion, three hundred eleven million, two hundred twelve thousand, two hundred thirty".