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212102201212 = 221119911278497
BaseRepresentation
bin1100010110001001000…
…1101011111101111100
3202021110202201012112221
43011202101223331330
511433341130414322
6241234410135124
721216042651316
oct3054221537574
9667422635487
10212102201212
1181a52188090
12351347214a4
13170026b8395
14a3a15047b6
1557b5b819c7
hex316246bf7c

212102201212 has 48 divisors (see below), whose sum is σ = 426703495680. Its totient is φ = 91235289600.

The previous prime is 212102201197. The next prime is 212102201249.

It is a happy number.

212102201212 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 622348 + ... + 900844.

It is an arithmetic number, because the mean of its divisors is an integer number (8889656160).

Almost surely, 2212102201212 is an apocalyptic number.

212102201212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

212102201212 is an abundant number, since it is smaller than the sum of its proper divisors (214601294468).

212102201212 is a wasteful number, since it uses less digits than its factorization.

212102201212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279442 (or 279440 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

It can be divided in two parts, 212102 and 201212, that added together give a palindrome (413314).

The spelling of 212102201212 in words is "two hundred twelve billion, one hundred two million, two hundred one thousand, two hundred twelve".

Divisors: 1 2 4 11 19 22 38 44 76 209 418 836 911 1822 3644 10021 17309 20042 34618 40084 69236 190399 278497 380798 556994 761596 1113988 3063467 5291443 6126934 10582886 12253868 21165772 58205873 116411746 232823492 253710767 507421534 1014843068 2790818437 4820504573 5581636874 9641009146 11163273748 19282018292 53025550303 106051100606 212102201212