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1220020302213 = 33592574496637
BaseRepresentation
bin10001110000001110111…
…000000111000110000101
311022122002022102211122000
4101300032320013012011
5124442100144132323
62332245233055513
7154100145315036
oct21601670070605
94278068384560
101220020302213
114304537224a9
121785463b7599
138b08025048b
14430993b6a8d
1521b07616e43
hex11c0ee07185

1220020302213 has 64 divisors (see below), whose sum is σ = 1849612320000. Its totient is φ = 794556628992.

The previous prime is 1220020302211. The next prime is 1220020302229. The reversal of 1220020302213 is 3122030200221.

It is not a de Polignac number, because 1220020302213 - 21 = 1220020302211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220020302211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 183817731 + ... + 183824367.

It is an arithmetic number, because the mean of its divisors is an integer number (28900192500).

Almost surely, 21220020302213 is an apocalyptic number.

It is an amenable number.

1220020302213 is a deficient number, since it is larger than the sum of its proper divisors (629592017787).

1220020302213 is a wasteful number, since it uses less digits than its factorization.

1220020302213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7411 (or 7405 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 1220020302213 its reverse (3122030200221), we get a palindrome (4342050502434).

The spelling of 1220020302213 in words is "one trillion, two hundred twenty billion, twenty million, three hundred two thousand, two hundred thirteen".

Divisors: 1 3 9 27 59 177 257 449 531 771 1347 1593 2313 4041 6637 6939 12123 15163 19911 26491 45489 59733 79473 115393 136467 179199 238419 346179 391583 409401 715257 1038537 1174749 1705709 2980013 3115611 3524247 5117127 6808187 8940039 10572741 15351381 20424561 26820117 46054143 61273683 80460351 100636831 175820767 183821049 301910493 527462301 765863341 905731479 1582386903 2297590023 2717194437 4747160709 6892770069 20678310207 45185937119 135557811357 406673434071 1220020302213