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10222137881 is a prime number
BaseRepresentation
bin10011000010100100…
…10111001000011001
3222101101202102000022
421201102113020121
5131413331403011
64410155520225
7511212511154
oct114122271031
928341672008
1010222137881
11437614853a
121b93459075
13c6ba25cc7
146cd868c9b
153ec63b8db
hex261497219

10222137881 has 2 divisors, whose sum is σ = 10222137882. Its totient is φ = 10222137880.

The previous prime is 10222137869. The next prime is 10222137911. The reversal of 10222137881 is 18873122201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8270265481 + 1951872400 = 90941^2 + 44180^2 .

It is an emirp because it is prime and its reverse (18873122201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10222137881 - 26 = 10222137817 is a prime.

It is a super-2 number, since 2×102221378812 (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10222137841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5111068940 + 5111068941.

It is an arithmetic number, because the mean of its divisors is an integer number (5111068941).

Almost surely, 210222137881 is an apocalyptic number.

It is an amenable number.

10222137881 is a deficient number, since it is larger than the sum of its proper divisors (1).

10222137881 is an equidigital number, since it uses as much as digits as its factorization.

10222137881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10752, while the sum is 35.

The spelling of 10222137881 in words is "ten billion, two hundred twenty-two million, one hundred thirty-seven thousand, eight hundred eighty-one".