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12220033021013 = 77315808580881
BaseRepresentation
bin1011000111010011001010…
…1110100011010001010101
31121021020001010000200212002
42301310302232203101111
53100203111423133023
641553450005205045
72400603544563416
oct261646256432125
947236033020762
1012220033021013
11399153a079214
1214543a8400785
136a84621a873c
1430364a4dd80d
15162d0ee84b28
hexb1d32ba3455

12220033021013 has 4 divisors (see below), whose sum is σ = 12235841602668. Its totient is φ = 12204224439360.

The previous prime is 12220033020929. The next prime is 12220033021033. The reversal of 12220033021013 is 31012033002221.

12220033021013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 523680900964 + 11696352120049 = 723658^2 + 3419993^2 .

It is a cyclic number.

It is not a de Polignac number, because 12220033021013 - 234 = 12202853151829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220033021033) 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, 7904289668 + ... + 7904291213.

It is an arithmetic number, because the mean of its divisors is an integer number (3058960400667).

Almost surely, 212220033021013 is an apocalyptic number.

It is an amenable number.

12220033021013 is a deficient number, since it is larger than the sum of its proper divisors (15808581655).

12220033021013 is an equidigital number, since it uses as much as digits as its factorization.

12220033021013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15808581654.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 12220033021013 its reverse (31012033002221), we get a palindrome (43232066023234).

The spelling of 12220033021013 in words is "twelve trillion, two hundred twenty billion, thirty-three million, twenty-one thousand, thirteen".

Divisors: 1 773 15808580881 12220033021013