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20212121200010 = 25127139031144721
BaseRepresentation
bin1001001100010000000000…
…10011011110010110001010
32122120021000110220221122212
410212020000103132112022
510122123411011400020
6110553153103345122
74154164130332265
oct446100023362612
978507013827585
1020212121200010
116492a04541203
1223252b25b21a2
13b37cc18c18bc
144dc3b40a9cdc
15250b6c51bcc5
hex1262004de58a

20212121200010 has 32 divisors (see below), whose sum is σ = 36670958641152. Its totient is φ = 8020604309760.

The previous prime is 20212121200009. The next prime is 20212121200013. The reversal of 20212121200010 is 1000212121202.

It is not an unprimeable number, because it can be changed into a prime (20212121200013) 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 15 ways as a sum of consecutive naturals, for example, 17084450 + ... + 18229170.

It is an arithmetic number, because the mean of its divisors is an integer number (1145967457536).

Almost surely, 220212121200010 is an apocalyptic number.

20212121200010 is a deficient number, since it is larger than the sum of its proper divisors (16458837441142).

20212121200010 is a wasteful number, since it uses less digits than its factorization.

20212121200010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1158758.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20212121200010 its reverse (1000212121202), we get a palindrome (21212333321212).

The spelling of 20212121200010 in words is "twenty trillion, two hundred twelve billion, one hundred twenty-one million, two hundred thousand, ten".

Divisors: 1 2 5 10 127 254 635 1270 13903 27806 69515 139030 1144721 1765681 2289442 3531362 5723605 8828405 11447210 17656810 145379567 290759134 726897835 1453795670 15915056063 31830112126 79575280315 159150560630 2021212120001 4042424240002 10106060600005 20212121200010