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22221213133 = 75875407937
BaseRepresentation
bin10100101100011111…
…001100110111001101
32010100122010120211211
4110230133030313031
5331002112310013
614112553414421
71414443123640
oct245437146715
963318116754
1022221213133
119473328359
124381a0a411
132131925932
14110b2c5a57
158a0c7823d
hex52c7ccdcd

22221213133 has 8 divisors (see below), whose sum is σ = 25438940352. Its totient is φ = 19014302976.

The previous prime is 22221213107. The next prime is 22221213139. The reversal of 22221213133 is 33131212222.

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 22221213133 - 25 = 22221213101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22221213139) 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, 2699860 + ... + 2708077.

It is an arithmetic number, because the mean of its divisors is an integer number (3179867544).

Almost surely, 222221213133 is an apocalyptic number.

It is an amenable number.

22221213133 is a deficient number, since it is larger than the sum of its proper divisors (3217727219).

22221213133 is an equidigital number, since it uses as much as digits as its factorization.

22221213133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5408531.

The product of its digits is 864, while the sum is 22.

Adding to 22221213133 its reverse (33131212222), we get a palindrome (55352425355).

The spelling of 22221213133 in words is "twenty-two billion, two hundred twenty-one million, two hundred thirteen thousand, one hundred thirty-three".

Divisors: 1 7 587 4109 5407937 37855559 3174459019 22221213133