111010102122220 has 96 divisors (see below), whose sum is σ = 268197872624640. Its totient is φ = 37807248441600.

The previous prime is 111010102122149. The next prime is 111010102122239. The reversal of 111010102122220 is 22221201010111.

It is a junction number, because it is equal to n+sod(n) for n = 111010102122194 and 111010102122203.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 769191307 + ... + 769335613.

It is an arithmetic number, because the mean of its divisors is an integer number (2793727839840).

Almost surely, 2^{111010102122220} is an apocalyptic number.

111010102122220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111010102122220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134098936312320).

111010102122220 is an abundant number, since it is smaller than the sum of its proper divisors (157187770502420).

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

111010102122220 is a wasteful number, since it uses less digits than its factorization.

111010102122220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180863 (or 180861 counting only the distinct ones).

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

Adding to 111010102122220 its reverse (22221201010111), we get a palindrome (133231303132331).

The spelling of 111010102122220 in words is "one hundred eleven trillion, ten billion, one hundred two million, one hundred twenty-two thousand, two hundred twenty".