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12212102130323 = 19796170844937
BaseRepresentation
bin1011000110110101101000…
…0000100110101010010011
31121020110120101122201002212
42301231122000212222103
53100040341121132243
641550055014502335
72400203163250214
oct261553200465223
947213511581085
1012212102130323
11398913a3136a7
1214529543649ab
136a779a081904
143030d70a540b
151629e8a8b318
hexb1b5a026a93

12212102130323 has 4 divisors (see below), whose sum is σ = 12218272977240. Its totient is φ = 12205931283408.

The previous prime is 12212102130257. The next prime is 12212102130343. The reversal of 12212102130323 is 32303120121221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12212102130323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12212102130343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3085420490 + ... + 3085424447.

It is an arithmetic number, because the mean of its divisors is an integer number (3054568244310).

Almost surely, 212212102130323 is an apocalyptic number.

12212102130323 is a deficient number, since it is larger than the sum of its proper divisors (6170846917).

12212102130323 is an equidigital number, since it uses as much as digits as its factorization.

12212102130323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6170846916.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 12212102130323 its reverse (32303120121221), we get a palindrome (44515222251544).

It can be divided in two parts, 1221210 and 2130323, that added together give a palindrome (3351533).

The spelling of 12212102130323 in words is "twelve trillion, two hundred twelve billion, one hundred two million, one hundred thirty thousand, three hundred twenty-three".

Divisors: 1 1979 6170844937 12212102130323