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12223323222 = 23117119713241
BaseRepresentation
bin10110110001001000…
…10001110001010110
31011112212100011012220
423120210101301112
5200013132320342
65340524123210
7611622350565
oct133044216126
934485304186
1012223323222
115202824720
122451696506
1311ca4c6a46
1483d551bdc
154b81855ec
hex2d8911c56

12223323222 has 64 divisors (see below), whose sum is σ = 27184025088. Its totient is φ = 3633056000.

The previous prime is 12223323209. The next prime is 12223323247. The reversal of 12223323222 is 22232332221.

It is a super-2 number, since 2×122233232222 (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 junction number, because it is equal to n+sod(n) for n = 12223323192 and 12223323201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 916522 + ... + 929762.

It is an arithmetic number, because the mean of its divisors is an integer number (424750392).

Almost surely, 212223323222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12223323222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13592012544).

12223323222 is an abundant number, since it is smaller than the sum of its proper divisors (14960701866).

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

12223323222 is a wasteful number, since it uses less digits than its factorization.

12223323222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13525.

The product of its digits is 3456, while the sum is 24.

Adding to 12223323222 its reverse (22232332221), we get a palindrome (34455655443).

The spelling of 12223323222 in words is "twelve billion, two hundred twenty-three million, three hundred twenty-three thousand, two hundred twenty-two".

Divisors: 1 2 3 6 11 22 33 66 71 142 197 213 394 426 591 781 1182 1562 2167 2343 4334 4686 6501 13002 13241 13987 26482 27974 39723 41961 79446 83922 145651 153857 291302 307714 436953 461571 873906 923142 940111 1880222 2608477 2820333 5216954 5640666 7825431 10341221 15650862 20682442 28693247 31023663 57386494 62047326 86079741 172159482 185201867 370403734 555605601 1111211202 2037220537 4074441074 6111661611 12223323222