1111222120110 has 32 divisors (see below), whose sum is σ = 2667630965760. Its totient is φ = 296248356768.

The previous prime is 1111222120097. The next prime is 1111222120123. The reversal of 1111222120110 is 110212221111.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1111222120097) and next prime (1111222120123).

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

It is a self number, because there is not a number n which added to its sum of digits gives 1111222120110.

It is a congruent number.

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, 4729770 + ... + 4959149.

It is an arithmetic number, because the mean of its divisors is an integer number (83363467680).

Almost surely, 2^{1111222120110} is an apocalyptic number.

1111222120110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1111222120110 is an abundant number, since it is smaller than the sum of its proper divisors (1556408845650).

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

1111222120110 is a wasteful number, since it uses less digits than its factorization.

1111222120110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9692752.

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

Adding to 1111222120110 its reverse (110212221111), we get a palindrome (1221434341221).

The spelling of 1111222120110 in words is "one trillion, one hundred eleven billion, two hundred twenty-two million, one hundred twenty thousand, one hundred ten".