Search a number
-
+
2122201247 is a prime number
BaseRepresentation
bin111111001111110…
…0011100010011111
312110220021222211012
41332133203202133
513321240414442
6550330045435
7103406261435
oct17637434237
95426258735
102122201247
11999a22231
124b287987b
1327a8921aa
14161bc8d55
15c64a0582
hex7e7e389f

2122201247 has 2 divisors, whose sum is σ = 2122201248. Its totient is φ = 2122201246.

The previous prime is 2122201223. The next prime is 2122201259. The reversal of 2122201247 is 7421022212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2122201247 - 26 = 2122201183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2122201547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061100623 + 1061100624.

It is an arithmetic number, because the mean of its divisors is an integer number (1061100624).

Almost surely, 22122201247 is an apocalyptic number.

2122201247 is a deficient number, since it is larger than the sum of its proper divisors (1).

2122201247 is an equidigital number, since it uses as much as digits as its factorization.

2122201247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 2122201247 is about 46067.3555459829. The cubic root of 2122201247 is about 1285.0761252322.

Adding to 2122201247 its reverse (7421022212), we get a palindrome (9543223459).

The spelling of 2122201247 in words is "two billion, one hundred twenty-two million, two hundred one thousand, two hundred forty-seven".