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1012012229 is a prime number
BaseRepresentation
bin111100010100100…
…001010011000101
32121112021112210102
4330110201103011
54033033342404
6244230533445
734035650654
oct7424412305
92545245712
101012012229
1147a288848
12242b07285
13131884907
149859719b
155dca571e
hex3c5214c5

1012012229 has 2 divisors, whose sum is σ = 1012012230. Its totient is φ = 1012012228.

The previous prime is 1012012201. The next prime is 1012012231. The reversal of 1012012229 is 9222102101.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 864948100 + 147064129 = 29410^2 + 12127^2 .

It is a cyclic number.

It is not a de Polignac number, because 1012012229 - 216 = 1011946693 is a prime.

It is a Sophie Germain prime.

Together with 1012012231, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1012012229.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1012012249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506006114 + 506006115.

It is an arithmetic number, because the mean of its divisors is an integer number (506006115).

Almost surely, 21012012229 is an apocalyptic number.

It is an amenable number.

1012012229 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012012229 is an equidigital number, since it uses as much as digits as its factorization.

1012012229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 1012012229 is about 31812.1396482538. The cubic root of 1012012229 is about 1003.9881498498.

The spelling of 1012012229 in words is "one billion, twelve million, twelve thousand, two hundred twenty-nine".