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212201222010001 = 761668974294867
BaseRepresentation
bin110000001111111011110010…
…011101010111010010010001
31000211100020110000102101102221
4300033323302131113102101
5210303201100313310001
62031151521241341041
762461014046232440
oct6017736235272221
91024306400371387
10212201222010001
116168303a828574
121b972027a97781
1391536491ca373
143a58845b02d57
15197ec9286b1a1
hexc0fef2757491

212201222010001 has 16 divisors (see below), whose sum is σ = 246528202792320. Its totient is φ = 178878262970880.

The previous prime is 212201222009983. The next prime is 212201222010013. The reversal of 212201222010001 is 100010222102212.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 212201222010001 - 29 = 212201222009489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212201222019001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34291231 + ... + 40003636.

It is an arithmetic number, because the mean of its divisors is an integer number (15408012674520).

Almost surely, 2212201222010001 is an apocalyptic number.

It is an amenable number.

212201222010001 is a deficient number, since it is larger than the sum of its proper divisors (34326980782319).

212201222010001 is an equidigital number, since it uses as much as digits as its factorization.

212201222010001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74301624.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 212201222010001 its reverse (100010222102212), we get a palindrome (312211444112213).

The spelling of 212201222010001 in words is "two hundred twelve trillion, two hundred one billion, two hundred twenty-two million, ten thousand, one".

Divisors: 1 7 61 427 6689 46823 408029 2856203 74294867 520064069 4531986887 31723908209 496958365363 3478708557541 30314460287143 212201222010001