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1210112213 is a prime number
BaseRepresentation
bin100100000100000…
…1101100011010101
310010100001001212212
41020020031203111
54434242042323
6320024523205
741662532642
oct11010154325
93110031785
101210112213
11571093242
12299320505
1316392513b
14b6a02dc9
1571386b78
hex4820d8d5

1210112213 has 2 divisors, whose sum is σ = 1210112214. Its totient is φ = 1210112212.

The previous prime is 1210112201. The next prime is 1210112221. The reversal of 1210112213 is 3122110121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1114424689 + 95687524 = 33383^2 + 9782^2 .

It is a cyclic number.

It is not a de Polignac number, because 1210112213 - 224 = 1193334997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1210115213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605056106 + 605056107.

It is an arithmetic number, because the mean of its divisors is an integer number (605056107).

Almost surely, 21210112213 is an apocalyptic number.

It is an amenable number.

1210112213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1210112213 is an equidigital number, since it uses as much as digits as its factorization.

1210112213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 1210112213 is about 34786.6671729270. The cubic root of 1210112213 is about 1065.6351763610.

Adding to 1210112213 its reverse (3122110121), we get a palindrome (4332222334).

The spelling of 1210112213 in words is "one billion, two hundred ten million, one hundred twelve thousand, two hundred thirteen".