Search a number
-
+
12211302213 = 3211219315807
BaseRepresentation
bin10110101111101100…
…11010111101000101
31011112000201102111100
423113312122331011
5200002043132323
65335414330313
7611415233115
oct132766327505
934460642440
1012211302213
1151a6a64100
122449659999
1311c7b78316
1483bb03045
154b70ad943
hex2d7d9af45

12211302213 has 36 divisors (see below), whose sum is σ = 19401205824. Its totient is φ = 7395682800.

The previous prime is 12211302211. The next prime is 12211302221. The reversal of 12211302213 is 31220311221.

It is not a de Polignac number, because 12211302213 - 21 = 12211302211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12211302211) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2099956 + ... + 2105762.

It is an arithmetic number, because the mean of its divisors is an integer number (538922384).

Almost surely, 212211302213 is an apocalyptic number.

It is an amenable number.

12211302213 is a deficient number, since it is larger than the sum of its proper divisors (7189903611).

12211302213 is a wasteful number, since it uses less digits than its factorization.

12211302213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7766 (or 7752 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 12211302213 its reverse (31220311221), we get a palindrome (43431613434).

The spelling of 12211302213 in words is "twelve billion, two hundred eleven million, three hundred two thousand, two hundred thirteen".

Divisors: 1 3 9 11 33 99 121 363 1089 1931 5793 5807 17379 17421 21241 52263 63723 63877 191169 191631 233651 574893 700953 702647 2102859 2107941 6323823 11213317 33639951 100919853 123346487 370039461 1110118383 1356811357 4070434071 12211302213