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2221350853 is a prime number
BaseRepresentation
bin1000010001100111…
…0001111111000101
312201210212022111211
42010121301333011
514022131211403
61004231131421
7106022112361
oct20431617705
95653768454
102221350853
11a3a992857
1251bb13b71
132952988b7
141710382a1
15d003806d
hex84671fc5

2221350853 has 2 divisors, whose sum is σ = 2221350854. Its totient is φ = 2221350852.

The previous prime is 2221350851. The next prime is 2221350871. The reversal of 2221350853 is 3580531222.

2221350853 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1902442689 + 318908164 = 43617^2 + 17858^2 .

It is a cyclic number.

It is not a de Polignac number, because 2221350853 - 21 = 2221350851 is a prime.

It is a super-2 number, since 2×22213508532 = 9868799224247655218, which contains 22 as substring.

Together with 2221350851, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2221350851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110675426 + 1110675427.

It is an arithmetic number, because the mean of its divisors is an integer number (1110675427).

Almost surely, 22221350853 is an apocalyptic number.

It is an amenable number.

2221350853 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221350853 is an equidigital number, since it uses as much as digits as its factorization.

2221350853 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 2221350853 is about 47131.2089066258. The cubic root of 2221350853 is about 1304.7852933325.

The spelling of 2221350853 in words is "two billion, two hundred twenty-one million, three hundred fifty thousand, eight hundred fifty-three".