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2201201112221 = 31531339745047
BaseRepresentation
bin100000000010000001110…
…011110111010010011101
321210102200111020100200022
4200002001303313102131
5242031024441042341
64403115015041525
7315013546511666
oct40020163672235
97712614210608
102201201112221
11779584708411
122b67359702a5
1312c759677027
14787782b036d
153c3d1b0be4b
hex20081cf749d

2201201112221 has 8 divisors (see below), whose sum is σ = 2315079442944. Its totient is φ = 2090002271760.

The previous prime is 2201201112203. The next prime is 2201201112233. The reversal of 2201201112221 is 1222111021022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2201201112221 - 26 = 2201201112157 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2201201112221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2201201112251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 669870881 + ... + 669874166.

It is an arithmetic number, because the mean of its divisors is an integer number (289384930368).

Almost surely, 22201201112221 is an apocalyptic number.

It is an amenable number.

2201201112221 is a deficient number, since it is larger than the sum of its proper divisors (113878330723).

2201201112221 is a wasteful number, since it uses less digits than its factorization.

2201201112221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1339745131.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2201201112221 its reverse (1222111021022), we get a palindrome (3423312133243).

The spelling of 2201201112221 in words is "two trillion, two hundred one billion, two hundred one million, one hundred twelve thousand, two hundred twenty-one".

Divisors: 1 31 53 1643 1339745047 41532096457 71006487491 2201201112221