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221020021100010 = 235116156110879577
BaseRepresentation
bin110010010000010000111011…
…110110001000110111101010
31001222120022022021202020201210
4302100100323312020313222
5212432143000400200020
62102023110155453550
764361112106542426
oct6220207366106752
91058508267666653
10221020021100010
1164473078a27020
12209571b1a572b6
1396431386c3092
143c815d7303b86
151a843881c43e0
hexc9043bd88dea

221020021100010 has 64 divisors (see below), whose sum is σ = 578680053842304. Its totient is φ = 53579735884800.

The previous prime is 221020021100003. The next prime is 221020021100077. The reversal of 221020021100010 is 10001120020122.

It is a super-2 number, since 2×2210200211000102 (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14875342 + ... + 25754918.

It is an arithmetic number, because the mean of its divisors is an integer number (9041875841286).

Almost surely, 2221020021100010 is an apocalyptic number.

221020021100010 is an abundant number, since it is smaller than the sum of its proper divisors (357660032742294).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221020021100010 is a wasteful number, since it uses less digits than its factorization.

221020021100010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10941159.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 221020021100010 its reverse (10001120020122), we get a palindrome (231021141120132).

The spelling of 221020021100010 in words is "two hundred twenty-one trillion, twenty billion, twenty-one million, one hundred thousand, ten".

Divisors: 1 2 3 5 6 10 11 15 22 30 33 55 66 110 165 330 61561 123122 184683 307805 369366 615610 677171 923415 1354342 1846830 2031513 3385855 4063026 6771710 10157565 10879577 20315130 21759154 32638731 54397885 65277462 108795770 119675347 163193655 239350694 326387310 359026041 598376735 718052082 1196753470 1795130205 3590260410 669757639697 1339515279394 2009272919091 3348788198485 4018545838182 6697576396970 7367334036667 10046364595455 14734668073334 20092729190910 22102002110001 36836670183335 44204004220002 73673340366670 110510010550005 221020021100010