111220101122010 has 32 divisors (see below), whose sum is σ = 282629904028992. Its totient is φ = 27914064595200.

The previous prime is 111220101121999. The next prime is 111220101122033. The reversal of 111220101122010 is 10221101022111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109039314316 + ... + 109039315335.

It is an arithmetic number, because the mean of its divisors is an integer number (8832184500906).

Almost surely, 2^{111220101122010} is an apocalyptic number.

111220101122010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111220101122010 is an abundant number, since it is smaller than the sum of its proper divisors (171409802906982).

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

111220101122010 is a wasteful number, since it uses less digits than its factorization.

111220101122010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218078629678.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 111220101122010 its reverse (10221101022111), we get a palindrome (121441202144121).

The spelling of 111220101122010 in words is "one hundred eleven trillion, two hundred twenty billion, one hundred one million, one hundred twenty-two thousand, ten".