Search a number
-
+
12212012122010 = 251221201212201
BaseRepresentation
bin1011000110110101010010…
…1001001111111110011010
31121020110100010021210220122
42301231110221033332122
53100040200100401020
641550042041353242
72400201021221261
oct261552451177632
947213303253818
1012212012122010
1139890a3527068
12145292a198822
136a7784528c5c
143030c91555d8
151629e0c0c125
hexb1b54a4ff9a

12212012122010 has 8 divisors (see below), whose sum is σ = 21981621819636. Its totient is φ = 4884804848800.

The previous prime is 12212012122007. The next prime is 12212012122067. The reversal of 12212012122010 is 1022121021221.

It can be written as a sum of positive squares in 2 ways, for example, as 11597859346969 + 614152775041 = 3405563^2 + 783679^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12212012122010.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 610600606091 + ... + 610600606110.

Almost surely, 212212012122010 is an apocalyptic number.

12212012122010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12212012122010 is a deficient number, since it is larger than the sum of its proper divisors (9769609697626).

12212012122010 is a wasteful number, since it uses less digits than its factorization.

12212012122010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1221201212208.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12212012122010 its reverse (1022121021221), we get a palindrome (13234133143231).

The spelling of 12212012122010 in words is "twelve trillion, two hundred twelve billion, twelve million, one hundred twenty-two thousand, ten".

Divisors: 1 2 5 10 1221201212201 2442402424402 6106006061005 12212012122010