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2221201120211 = 19796317177677
BaseRepresentation
bin100000010100101001111…
…001110101101111010011
321212100022022210000212222
4200110221321311233103
5242343004441321321
64420223344411255
7316322302001123
oct40245171655723
97770268700788
102221201120211
11787008142437
122ba597916b2b
131315c6055498
1479714598c83
153cba287a3ab
hex20529e75bd3

2221201120211 has 8 divisors (see below), whose sum is σ = 2222687815920. Its totient is φ = 2219714796448.

The previous prime is 2221201120207. The next prime is 2221201120213. The reversal of 2221201120211 is 1120211021222.

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 2221201120211 - 22 = 2221201120207 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 2221201120211.

It is not an unprimeable number, because it can be changed into a prime (2221201120213) 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, 12412505 + ... + 12590181.

It is an arithmetic number, because the mean of its divisors is an integer number (277835976990).

Almost surely, 22221201120211 is an apocalyptic number.

2221201120211 is a deficient number, since it is larger than the sum of its proper divisors (1486695709).

2221201120211 is a wasteful number, since it uses less digits than its factorization.

2221201120211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185973.

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

Adding to 2221201120211 its reverse (1120211021222), we get a palindrome (3341412141433).

The spelling of 2221201120211 in words is "two trillion, two hundred twenty-one billion, two hundred one million, one hundred twenty thousand, two hundred eleven".

Divisors: 1 1979 6317 177677 12501343 351622783 1122385609 2221201120211