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220112212 = 2271775043
BaseRepresentation
bin11010001111010…
…10010101010100
3120100011212012011
431013222111110
5422322042322
633501434004
75311631365
oct1507522524
9510155164
10220112212
1110327a621
126186b904
13367a9818
1421339b6c
15144cd677
hexd1ea554

220112212 has 12 divisors (see below), whose sum is σ = 390622176. Its totient is φ = 108505880.

The previous prime is 220112171. The next prime is 220112213. The reversal of 220112212 is 212211022.

It is a happy number.

220112212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 220112192 and 220112201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220112213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 387238 + ... + 387805.

It is an arithmetic number, because the mean of its divisors is an integer number (32551848).

Almost surely, 2220112212 is an apocalyptic number.

It is an amenable number.

220112212 is a deficient number, since it is larger than the sum of its proper divisors (170509964).

220112212 is a wasteful number, since it uses less digits than its factorization.

220112212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775118 (or 775116 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 220112212 is about 14836.1791577212. The cubic root of 220112212 is about 603.7836929931.

Adding to 220112212 its reverse (212211022), we get a palindrome (432323234).

The spelling of 220112212 in words is "two hundred twenty million, one hundred twelve thousand, two hundred twelve".

Divisors: 1 2 4 71 142 284 775043 1550086 3100172 55028053 110056106 220112212