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1222010212122 = 233731104284879
BaseRepresentation
bin10001110010000101011…
…111000000111100011010
311022211012222210201212000
4101302011133000330122
5130010134103241442
62333214515501430
7154200360263460
oct21620537007432
94284188721760
101222010212122
114312849a8247
12178a008b7876
138b3095a3c6b
14432077a6830
1521bc2184d4c
hex11c857c0f1a

1222010212122 has 64 divisors (see below), whose sum is σ = 3203631513600. Its totient is φ = 337883004720.

The previous prime is 1222010212097. The next prime is 1222010212139. The reversal of 1222010212122 is 2212120102221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1222010212095 and 1222010212104.

It is an unprimeable number.

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, 52130722 + ... + 52154157.

It is an arithmetic number, because the mean of its divisors is an integer number (50056742400).

Almost surely, 21222010212122 is an apocalyptic number.

1222010212122 is an abundant number, since it is smaller than the sum of its proper divisors (1981621301478).

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

1222010212122 is a wasteful number, since it uses less digits than its factorization.

1222010212122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104284928 (or 104284922 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 1222010212122 its reverse (2212120102221), we get a palindrome (3434130314343).

The spelling of 1222010212122 in words is "one trillion, two hundred twenty-two billion, ten million, two hundred twelve thousand, one hundred twenty-two".

Divisors: 1 2 3 6 7 9 14 18 21 27 31 42 54 62 63 93 126 186 189 217 279 378 434 558 651 837 1302 1674 1953 3906 5859 11718 104284879 208569758 312854637 625709274 729994153 938563911 1459988306 1877127822 2189982459 2815691733 3232831249 4379964918 5631383466 6465662498 6569947377 9698493747 13139894754 19396987494 19709842131 22629818743 29095481241 39419684262 45259637486 58190962482 67889456229 87286443723 135778912458 174572887446 203668368687 407336737374 611005106061 1222010212122