Search a number
-
+
2102122021212 = 223319464092789
BaseRepresentation
bin11110100101110000001…
…111001000000101011100
321102221221111110001002000
4132211300033020011130
5233420121214134322
64245411310202300
7304605354235233
oct36456017100534
97387844401060
102102122021212
11740561095924
1229b4a44b3390
131232c98a2065
1473a5968db1a
1539a3367e3ac
hex1e9703c815c

2102122021212 has 24 divisors (see below), whose sum is σ = 5449945981200. Its totient is φ = 700707340368.

The previous prime is 2102122021199. The next prime is 2102122021229. The reversal of 2102122021212 is 2121202212012.

It is a happy number.

2102122021212 is a `hidden beast` number, since 210 + 2 + 1 + 220 + 21 + 212 = 666.

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

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 9732046287 + ... + 9732046502.

It is an arithmetic number, because the mean of its divisors is an integer number (227081082550).

Almost surely, 22102122021212 is an apocalyptic number.

It is an amenable number.

2102122021212 is an abundant number, since it is smaller than the sum of its proper divisors (3347823959988).

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

2102122021212 is a wasteful number, since it uses less digits than its factorization.

2102122021212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19464092802 (or 19464092794 counting only the distinct ones).

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

Adding to 2102122021212 its reverse (2121202212012), we get a palindrome (4223324233224).

The spelling of 2102122021212 in words is "two trillion, one hundred two billion, one hundred twenty-two million, twenty-one thousand, two hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 108 19464092789 38928185578 58392278367 77856371156 116784556734 175176835101 233569113468 350353670202 525530505303 700707340404 1051061010606 2102122021212