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12113223222 = 232018870537
BaseRepresentation
bin10110100100000000…
…10001111000110110
31011021012011111102010
423102000101320312
5144301441120342
65321552225050
7606114461412
oct132200217066
934235144363
1012113223222
115156664991
12242083b186
1311b0758009
1482ca91d42
154ad68829c
hex2d2011e36

12113223222 has 8 divisors (see below), whose sum is σ = 24226446456. Its totient is φ = 4037741072.

The previous prime is 12113223211. The next prime is 12113223223. The reversal of 12113223222 is 22232231121.

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

12113223222 is an admirable number.

It is a super-2 number, since 2×121132232222 (a number of 21 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12113223223) 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, 1009435263 + ... + 1009435274.

It is an arithmetic number, because the mean of its divisors is an integer number (3028305807).

Almost surely, 212113223222 is an apocalyptic number.

12113223222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12113223222 is a wasteful number, since it uses less digits than its factorization.

12113223222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2018870542.

The product of its digits is 576, while the sum is 21.

Adding to 12113223222 its reverse (22232231121), we get a palindrome (34345454343).

The spelling of 12113223222 in words is "twelve billion, one hundred thirteen million, two hundred twenty-three thousand, two hundred twenty-two".

Divisors: 1 2 3 6 2018870537 4037741074 6056611611 12113223222