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10221113989 is a prime number
BaseRepresentation
bin10011000010011100…
…11101001010000101
3222101022211101111101
421201032131022011
5131413101121424
64410121540101
7511201015102
oct114116351205
928338741441
1010221113989
114375609249
121b93044631
13c6b757c58
146cd67daa9
153ec4d8344
hex26139d285

10221113989 has 2 divisors, whose sum is σ = 10221113990. Its totient is φ = 10221113988.

The previous prime is 10221113977. The next prime is 10221114019. The reversal of 10221113989 is 98931112201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5903309889 + 4317804100 = 76833^2 + 65710^2 .

It is a cyclic number.

It is not a de Polignac number, because 10221113989 - 233 = 1631179397 is a prime.

It is a super-2 number, since 2×102211139892 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10221113909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5110556994 + 5110556995.

It is an arithmetic number, because the mean of its divisors is an integer number (5110556995).

Almost surely, 210221113989 is an apocalyptic number.

It is an amenable number.

10221113989 is a deficient number, since it is larger than the sum of its proper divisors (1).

10221113989 is an equidigital number, since it uses as much as digits as its factorization.

10221113989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 37.

The spelling of 10221113989 in words is "ten billion, two hundred twenty-one million, one hundred thirteen thousand, nine hundred eighty-nine".