1110111012220 has 72 divisors (see below), whose sum is σ = 2854571222160. Its totient is φ = 360577405440.

The previous prime is 1110111012169. The next prime is 1110111012221. The reversal of 1110111012220 is 222101110111.

It is a happy number.

It is a super-2 number, since 2×1110111012220² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1110111012220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1110111012221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29791021 + ... + 29828260.

It is an arithmetic number, because the mean of its divisors is an integer number (39646822530).

Almost surely, 2^{1110111012220} is an apocalyptic number.

1110111012220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1110111012220 is an abundant number, since it is smaller than the sum of its proper divisors (1744460209940).

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

1110111012220 is a wasteful number, since it uses less digits than its factorization.

1110111012220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59619323 (or 59619314 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1110111012220 its reverse (222101110111), we get a palindrome (1332212122331).

The spelling of 1110111012220 in words is "one trillion, one hundred ten billion, one hundred eleven million, twelve thousand, two hundred twenty".