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220202202121013 = 7137325077063601
BaseRepresentation
bin110010000100010111010010…
…000010010100001100110101
31001212200010101002001120212002
4302010113102002110030311
5212330243102220333023
62100155254540505045
764245040563115340
oct6204272202241465
91055603332046762
10220202202121013
116418825848a702
12208447b3b4b185
1395b3c94b86968
143c53bb45d3457
151a6ce70884b28
hexc845d2094335

220202202121013 has 16 divisors (see below), whose sum is σ = 253504425492864. Its totient is φ = 187361255385600.

The previous prime is 220202202120991. The next prime is 220202202121037. The reversal of 220202202121013 is 310121202202022.

It is a cyclic number.

It is not a de Polignac number, because 220202202121013 - 212 = 220202202116917 is a prime.

It is a super-2 number, since 2×2202022021210132 (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220202202121063) by changing a digit.

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, 27642413 + ... + 34706013.

It is an arithmetic number, because the mean of its divisors is an integer number (15844026593304).

Almost surely, 2220202202121013 is an apocalyptic number.

It is an amenable number.

220202202121013 is a deficient number, since it is larger than the sum of its proper divisors (33302223371851).

220202202121013 is a wasteful number, since it uses less digits than its factorization.

220202202121013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7096252.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 220202202121013 its reverse (310121202202022), we get a palindrome (530323404323035).

The spelling of 220202202121013 in words is "two hundred twenty trillion, two hundred two billion, two hundred two million, one hundred twenty-one thousand, thirteen".

Divisors: 1 7 137 959 32507 227549 4453459 7063601 31174213 49445207 967713337 6773993359 229616477707 1607315343949 31457457445859 220202202121013