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12102201230 = 2571713017817
BaseRepresentation
bin10110100010101100…
…01110111110001110
31011020102102112002012
423101112032332032
5144241130414410
65320520101222
7605622004340
oct132126167616
934212375065
1012102201230
1151504169a9
122419004812
1311ab399222
1482b423290
154ac70c605
hex2d158ef8e

12102201230 has 64 divisors (see below), whose sum is σ = 26384061312. Its totient is φ = 3901747200.

The previous prime is 12102201229. The next prime is 12102201233. The reversal of 12102201230 is 3210220121.

It is a happy number.

It is a super-2 number, since 2×121022012302 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12102201233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1544282 + ... + 1552098.

It is an arithmetic number, because the mean of its divisors is an integer number (412250958).

Almost surely, 212102201230 is an apocalyptic number.

12102201230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12102201230 is an abundant number, since it is smaller than the sum of its proper divisors (14281860082).

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

12102201230 is a wasteful number, since it uses less digits than its factorization.

12102201230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9149.

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

Adding to 12102201230 its reverse (3210220121), we get a palindrome (15312421351).

The spelling of 12102201230 in words is "twelve billion, one hundred two million, two hundred one thousand, two hundred thirty".

Divisors: 1 2 5 7 10 14 17 34 35 70 85 119 170 238 595 1190 1301 2602 6505 7817 9107 13010 15634 18214 22117 39085 44234 45535 54719 78170 91070 109438 110585 132889 154819 221170 265778 273595 309638 547190 664445 774095 930223 1328890 1548190 1860446 4651115 9302230 10169917 20339834 50849585 71189419 101699170 142378838 172888589 345777178 355947095 711894190 864442945 1210220123 1728885890 2420440246 6051100615 12102201230