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21200211201110 = 257340172422407
BaseRepresentation
bin1001101001000000011110…
…00011101100110001010110
32210001201110011120202002112
410310200033003230301112
510234321013031413420
6113031124221311022
74315443665633414
oct464401703546126
983051404522075
1021200211201110
116833a605976a7
1224648aba05472
13baa22c5781c6
1453414a8422b4
1526b6ed38e8c5
hex13480f0ecc56

21200211201110 has 32 divisors (see below), whose sum is σ = 38779592277312. Its totient is φ = 8343061171200.

The previous prime is 21200211201097. The next prime is 21200211201179. The reversal of 21200211201110 is 1110211200212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35918474 + ... + 36503933.

It is an arithmetic number, because the mean of its divisors is an integer number (1211862258666).

Almost surely, 221200211201110 is an apocalyptic number.

21200211201110 is a deficient number, since it is larger than the sum of its proper divisors (17579381076202).

21200211201110 is a wasteful number, since it uses less digits than its factorization.

21200211201110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72422888.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 21200211201110 its reverse (1110211200212), we get a palindrome (22310422401322).

The spelling of 21200211201110 in words is "twenty-one trillion, two hundred billion, two hundred eleven million, two hundred one thousand, one hundred ten".

Divisors: 1 2 5 10 73 146 365 401 730 802 2005 4010 29273 58546 146365 292730 72422407 144844814 362112035 724224070 5286835711 10573671422 26434178555 29041385207 52868357110 58082770414 145206926035 290413852070 2120021120111 4240042240222 10600105600555 21200211201110