110212211220 has 96 divisors (see below), whose sum is σ = 323948298240. Its totient is φ = 27959767680.

The previous prime is 110212211177. The next prime is 110212211227. The reversal of 110212211220 is 22112212011.

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 110212211220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110212211227) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 392412 + ... + 611891.

It is an arithmetic number, because the mean of its divisors is an integer number (3374461440).

Almost surely, 2^110212211220 is an apocalyptic number.

110212211220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

110212211220 is an abundant number, since it is smaller than the sum of its proper divisors (213736087020).

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

110212211220 is a wasteful number, since it uses less digits than its factorization.

110212211220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1004405 (or 1004403 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 110212211220 its reverse (22112212011), we get a palindrome (132324423231).

The spelling of 110212211220 in words is "one hundred ten billion, two hundred twelve million, two hundred eleven thousand, two hundred twenty".