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12220112222 = 216193377327
BaseRepresentation
bin10110110000110000…
…00001110101011110
31011112122022000112222
423120120001311132
5200011322042342
65340331225342
7611553145223
oct133030016536
934478260488
1012220112222
115200a311aa
1224505a8252
1311c9941346
1483cd5794a
154b7c4ded2
hex2d8601d5e

12220112222 has 8 divisors (see below), whose sum is σ = 18331348896. Its totient is φ = 6109662592.

The previous prime is 12220112209. The next prime is 12220112269. The reversal of 12220112222 is 22221102221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×122201122222 (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12220112222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156278 + ... + 221049.

It is an arithmetic number, because the mean of its divisors is an integer number (2291418612).

Almost surely, 212220112222 is an apocalyptic number.

12220112222 is a deficient number, since it is larger than the sum of its proper divisors (6111236674).

12220112222 is a wasteful number, since it uses less digits than its factorization.

12220112222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393522.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 12220112222 its reverse (22221102221), we get a palindrome (34441214443).

The spelling of 12220112222 in words is "twelve billion, two hundred twenty million, one hundred twelve thousand, two hundred twenty-two".

Divisors: 1 2 16193 32386 377327 754654 6110056111 12220112222