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2121010000010 = 2511101190909991
BaseRepresentation
bin11110110111010110000…
…011000011000010001010
321111202200211111210000022
4132313112003003002022
5234222312030000020
64302213433140442
7306144414350636
oct36672603030212
97452624453008
102121010000010
11748573939960
122a3095b5a722
13125019a7a485
147492bdc7dc6
153a28b98c625
hex1edd60c308a

2121010000010 has 32 divisors (see below), whose sum is σ = 4206128943744. Its totient is φ = 763639960000.

The previous prime is 2121010000009. The next prime is 2121010000049. The reversal of 2121010000010 is 100000101212.

It is a Curzon number.

It is an unprimeable number.

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, 95443886 + ... + 95466105.

It is an arithmetic number, because the mean of its divisors is an integer number (131441529492).

Almost surely, 22121010000010 is an apocalyptic number.

2121010000010 is a deficient number, since it is larger than the sum of its proper divisors (2085118943734).

2121010000010 is a wasteful number, since it uses less digits than its factorization.

2121010000010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190910110.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 2121010000010 its reverse (100000101212), we get a palindrome (2221010101222).

The spelling of 2121010000010 in words is "two trillion, one hundred twenty-one billion, ten million, ten", and thus it is an aban number.

Divisors: 1 2 5 10 11 22 55 101 110 202 505 1010 1111 2222 5555 11110 190909991 381819982 954549955 1909099910 2100009901 4200019802 10500049505 19281909091 21000099010 38563818182 96409545455 192819090910 212101000001 424202000002 1060505000005 2121010000010