220113212 has 24 divisors (see below), whose sum is σ = 444936240. Its totient is φ = 94165760.

The previous prime is 220113203. The next prime is 220113221. The reversal of 220113212 is 212311022.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (220113203) and next prime (220113221).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146387 + ... + 147882.

It is an arithmetic number, because the mean of its divisors is an integer number (18539010).

Almost surely, 2^220113212 is an apocalyptic number.

220113212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

220113212 is an abundant number, since it is smaller than the sum of its proper divisors (224823028).

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

220113212 is a wasteful number, since it uses less digits than its factorization.

220113212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294301 (or 294299 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 220113212 is about 14836.2128590823. The cubic root of 220113212 is about 603.7846073492.

Adding to 220113212 its reverse (212311022), we get a palindrome (432424234).

The spelling of 220113212 in words is "two hundred twenty million, one hundred thirteen thousand, two hundred twelve".