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212001112002210 = 2352329611731003957
BaseRepresentation
bin110000001101000001011010…
…111110010000111010100010
31000210122002221000010201121220
4300031001122332100322202
5210241411234133032320
62030515544421355510
762440401121232136
oct6015013276207242
91023562830121556
10212001112002210
116160619195a943
121b93b29b568b96
13913a80817242b
143a4cca11873c6
15197997e916e40
hexc0d05af90ea2

212001112002210 has 256 divisors, whose sum is σ = 561463431183360. Its totient is φ = 51058150133760.

The previous prime is 212001112002193. The next prime is 212001112002259. The reversal of 212001112002210 is 12200211100212.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 212001112002210.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 210663552 + ... + 211667508.

It is an arithmetic number, because the mean of its divisors is an integer number (2193216528060).

Almost surely, 2212001112002210 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212001112002210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (280731715591680).

212001112002210 is an abundant number, since it is smaller than the sum of its proper divisors (349462319181150).

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

212001112002210 is a wasteful number, since it uses less digits than its factorization.

212001112002210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1004253.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 212001112002210 its reverse (12200211100212), we get a palindrome (224201323102422).

The spelling of 212001112002210 in words is "two hundred twelve trillion, one billion, one hundred twelve million, two thousand, two hundred ten".