111222022011210 has 96 divisors (see below), whose sum is σ = 315646679604672. Its totient is φ = 26947480170240.

The previous prime is 111222022011179. The next prime is 111222022011313. The reversal of 111222022011210 is 12110220222111.

111222022011210 is a `hidden beast` number, since 1 + 1 + 1 + 2 + 220 + 220 + 11 + 210 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 30424299 + ... + 33883358.

It is an arithmetic number, because the mean of its divisors is an integer number (3287986245882).

Almost surely, 2^{111222022011210} is an apocalyptic number.

111222022011210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111222022011210 is an abundant number, since it is smaller than the sum of its proper divisors (204424657593462).

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

111222022011210 is a wasteful number, since it uses less digits than its factorization.

111222022011210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64309428 (or 64309425 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 111222022011210 its reverse (12110220222111), we get a palindrome (123332242233321).

The spelling of 111222022011210 in words is "one hundred eleven trillion, two hundred twenty-two billion, twenty-two million, eleven thousand, two hundred ten".