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2221141213 = 2250198713
BaseRepresentation
bin1000010001100011…
…1110110011011101
312201210110122221101
42010120332303131
514022103004323
61004222433101
7106020250234
oct20430766335
95653418841
102221141213
11a3a85a2a5
1251ba32791
13295224355
14170dc1b1b
15ceee5dad
hex8463ecdd

2221141213 has 4 divisors (see below), whose sum is σ = 2221262428. Its totient is φ = 2221020000.

The previous prime is 2221141189. The next prime is 2221141229. The reversal of 2221141213 is 3121411222.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 2186778169 + 34363044 = 46763^2 + 5862^2 .

It is a cyclic number.

It is not a de Polignac number, because 2221141213 - 213 = 2221133021 is a prime.

It is a super-2 number, since 2×22211412132 = 9866936576174222738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221141253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26856 + ... + 71857.

It is an arithmetic number, because the mean of its divisors is an integer number (555315607).

Almost surely, 22221141213 is an apocalyptic number.

It is an amenable number.

2221141213 is a deficient number, since it is larger than the sum of its proper divisors (121215).

2221141213 is an equidigital number, since it uses as much as digits as its factorization.

2221141213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121214.

The product of its digits is 192, while the sum is 19.

The square root of 2221141213 is about 47128.9848500899. The cubic root of 2221141213 is about 1304.7442456679.

Adding to 2221141213 its reverse (3121411222), we get a palindrome (5342552435).

The spelling of 2221141213 in words is "two billion, two hundred twenty-one million, one hundred forty-one thousand, two hundred thirteen".

Divisors: 1 22501 98713 2221141213