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1212132233312 = 257111337841291
BaseRepresentation
bin10001101000111000101…
…101100001000001100000
311021212201120122102022222
4101220320231201001200
5124324421322431222
62324502412250212
7153400523661440
oct21507055410140
94255646572288
101212132233312
114280760555a0
12176b04770968
138a3c3c6a6a0
144294b928120
15217e4d7b542
hex11a38b61060

1212132233312 has 96 divisors (see below), whose sum is σ = 3204097876224. Its totient is φ = 435931660800.

The previous prime is 1212132233243. The next prime is 1212132233353. The reversal of 1212132233312 is 2133322312121.

It is a Harshad number since it is a multiple of its sum of digits (26).

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, 18888614 + ... + 18952677.

It is an arithmetic number, because the mean of its divisors is an integer number (33376019544).

Almost surely, 21212132233312 is an apocalyptic number.

It is an amenable number.

1212132233312 is an abundant number, since it is smaller than the sum of its proper divisors (1991965642912).

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

1212132233312 is a wasteful number, since it uses less digits than its factorization.

1212132233312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37841332 (or 37841324 counting only the distinct ones).

The product of its digits is 2592, while the sum is 26.

Adding to 1212132233312 its reverse (2133322312121), we get a palindrome (3345454545433).

The spelling of 1212132233312 in words is "one trillion, two hundred twelve billion, one hundred thirty-two million, two hundred thirty-three thousand, three hundred twelve".

Divisors: 1 2 4 7 8 11 13 14 16 22 26 28 32 44 52 56 77 88 91 104 112 143 154 176 182 208 224 286 308 352 364 416 572 616 728 1001 1144 1232 1456 2002 2288 2464 2912 4004 4576 8008 16016 32032 37841291 75682582 151365164 264889037 302730328 416254201 491936783 529778074 605460656 832508402 983873566 1059556148 1210921312 1665016804 1967747132 2119112296 2913779407 3330033608 3443557481 3935494264 4238224592 5411304613 5827558814 6660067216 6887114962 7870988528 8476449184 10822609226 11655117628 13320134432 13774229924 15741977056 21645218452 23310235256 27548459848 37879132291 43290436904 46620470512 55096919696 75758264582 86580873808 93240941024 110193839392 151516529164 173161747616 303033058328 606066116656 1212132233312