111020221122210 has 96 divisors (see below), whose sum is σ = 288870354938880. Its totient is φ = 29583062227584.

The previous prime is 111020221122203. The next prime is 111020221122271. The reversal of 111020221122210 is 12221122020111.

111020221122210 is a `hidden beast` number, since 1 + 110 + 2 + 0 + 221 + 122 + 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, 890114772 + ... + 890239488.

It is an arithmetic number, because the mean of its divisors is an integer number (3009066197280).

Almost surely, 2^{111020221122210} is an apocalyptic number.

111020221122210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111020221122210 is an abundant number, since it is smaller than the sum of its proper divisors (177850133816670).

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

111020221122210 is a wasteful number, since it uses less digits than its factorization.

111020221122210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132112 (or 132109 counting only the distinct ones).

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

Adding to 111020221122210 its reverse (12221122020111), we get a palindrome (123241343142321).

The spelling of 111020221122210 in words is "one hundred eleven trillion, twenty billion, two hundred twenty-one million, one hundred twenty-two thousand, two hundred ten".