Search a number
-
+
10001210211191 is a prime number
BaseRepresentation
bin1001000110001001011010…
…0101001111101101110111
31022102002212112110100111002
42101202112211033231313
52302324434303224231
633134254220033515
72051364212101643
oct221422645175567
938362775410432
1010001210211191
113206542484661
12115637509289b
13577157ab6714
142680bdb59c23
1512524b2e90cb
hex9189694fb77

10001210211191 has 2 divisors, whose sum is σ = 10001210211192. Its totient is φ = 10001210211190.

The previous prime is 10001210211169. The next prime is 10001210211193. The reversal of 10001210211191 is 19111201210001.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10001210211191 is a prime.

It is a super-2 number, since 2×100012102111912 (a number of 27 digits) contains 22 as substring.

Together with 10001210211193, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10001210211193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5000605105595 + 5000605105596.

It is an arithmetic number, because the mean of its divisors is an integer number (5000605105596).

Almost surely, 210001210211191 is an apocalyptic number.

10001210211191 is a deficient number, since it is larger than the sum of its proper divisors (1).

10001210211191 is an equidigital number, since it uses as much as digits as its factorization.

10001210211191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 20.

Adding to 10001210211191 its reverse (19111201210001), we get a palindrome (29112411421192).

The spelling of 10001210211191 in words is "ten trillion, one billion, two hundred ten million, two hundred eleven thousand, one hundred ninety-one".