Search a number
-
+
20120212122022 = 2191997873380813
BaseRepresentation
bin1001001001100100110100…
…00110001010100110100110
32122020110210011210000212101
410210302122012022212212
510114122143300401042
6110443033045042314
74144431420136555
oct444623206124646
978213704700771
1020120212122022
116457a30234611
12230b5223b639a
13b2c43540aa9c
144d7b7581dd9c
1524d58d78c6b7
hex124c9a18a9a6

20120212122022 has 32 divisors (see below), whose sum is σ = 31968977184000. Its totient is φ = 9470682178848.

The previous prime is 20120212122011. The next prime is 20120212122037. The reversal of 20120212122022 is 22022121202102.

It is a super-2 number, since 2×201202121220222 (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

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 15 ways as a sum of consecutive naturals, for example, 4260888 + ... + 7641700.

It is an arithmetic number, because the mean of its divisors is an integer number (999030537000).

Almost surely, 220120212122022 is an apocalyptic number.

20120212122022 is a deficient number, since it is larger than the sum of its proper divisors (11848765061978).

20120212122022 is a wasteful number, since it uses less digits than its factorization.

20120212122022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3381820.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 20120212122022 its reverse (22022121202102), we get a palindrome (42142333324124).

The spelling of 20120212122022 in words is "twenty trillion, one hundred twenty billion, two hundred twelve million, one hundred twenty-two thousand, twenty-two".

Divisors: 1 2 19 38 199 398 787 1574 3781 7562 14953 29906 156613 313226 2975647 3380813 5951294 6761626 64235447 128470894 672781787 1345563574 2660699831 5321399662 12782853953 25565707906 50553296789 101106593578 529479266369 1058958532738 10060106061011 20120212122022