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212001112212 = 223293169735531
BaseRepresentation
bin1100010101110001000…
…0000100000010010100
3202021012201111100111220
43011130100010002110
511433134241042322
6241220355330340
721213404502231
oct3053420040224
9667181440456
10212001112212
1181a0011245a
12351068b09b0
1316cb7782cc6
14a391d0c788
1557abd6455c
hex315c404094

212001112212 has 48 divisors (see below), whose sum is σ = 496664021952. Its totient is φ = 70382371840.

The previous prime is 212001112199. The next prime is 212001112223. The reversal of 212001112212 is 212211100212.

It is a junction number, because it is equal to n+sod(n) for n = 212001112191 and 212001112200.

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, 5948887 + ... + 5984417.

It is an arithmetic number, because the mean of its divisors is an integer number (10347167124).

Almost surely, 2212001112212 is an apocalyptic number.

It is an amenable number.

212001112212 is an abundant number, since it is smaller than the sum of its proper divisors (284662909740).

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

212001112212 is a wasteful number, since it uses less digits than its factorization.

212001112212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37528 (or 37526 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 212001112212 its reverse (212211100212), we get a palindrome (424212212424).

The spelling of 212001112212 in words is "two hundred twelve billion, one million, one hundred twelve thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 293 586 879 1172 1697 1758 3394 3516 5091 6788 10182 20364 35531 71062 106593 142124 213186 426372 497221 994442 1491663 1988884 2983326 5966652 10410583 20821166 31231749 41642332 60296107 62463498 120592214 124926996 180888321 241184428 361776642 723553284 17666759351 35333518702 53000278053 70667037404 106000556106 212001112212