111220110201220 has 48 divisors (see below), whose sum is σ = 238646605377600. Its totient is φ = 43526739150720.

The previous prime is 111220110201203. The next prime is 111220110201227. The reversal of 111220110201220 is 22102011022111.

It is a super-2 number, since 2×111220110201220² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111220110201194 and 111220110201203.

It is not an unprimeable number, because it can be changed into a prime (111220110201227) 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, 223102515 + ... + 223600474.

It is an arithmetic number, because the mean of its divisors is an integer number (4971804278700).

Almost surely, 2^{111220110201220} is an apocalyptic number.

111220110201220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111220110201220 is an abundant number, since it is smaller than the sum of its proper divisors (127426495176380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111220110201220 is a wasteful number, since it uses less digits than its factorization.

111220110201220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446703268 (or 446703266 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 111220110201220 its reverse (22102011022111), we get a palindrome (133322121223331).

The spelling of 111220110201220 in words is "one hundred eleven trillion, two hundred twenty billion, one hundred ten million, two hundred one thousand, two hundred twenty".