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22221311311 = 139941169889
BaseRepresentation
bin10100101100011111…
…100100110101001111
32010100122022120112001
4110230133210311033
5331002123430221
614112555453131
71414444013113
oct245437446517
963318276461
1022221311311
1194733950a1
124381a571a7
13213195b524
14110b30d743
158a0c97391
hex52c7e4d4f

22221311311 has 8 divisors (see below), whose sum is σ = 22405093200. Its totient is φ = 22037871360.

The previous prime is 22221311263. The next prime is 22221311317. The reversal of 22221311311 is 11311312222.

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 22221311311 - 217 = 22221180239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22221311317) 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, 45855 + ... + 215743.

It is an arithmetic number, because the mean of its divisors is an integer number (2800636650).

Almost surely, 222221311311 is an apocalyptic number.

22221311311 is a deficient number, since it is larger than the sum of its proper divisors (183781889).

22221311311 is a wasteful number, since it uses less digits than its factorization.

22221311311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170969.

The product of its digits is 144, while the sum is 19.

Adding to 22221311311 its reverse (11311312222), we get a palindrome (33532623533).

The spelling of 22221311311 in words is "twenty-two billion, two hundred twenty-one million, three hundred eleven thousand, three hundred eleven".

Divisors: 1 139 941 130799 169889 23614571 159865549 22221311311