Search a number
-
+
2112111110201 is a prime number
BaseRepresentation
bin11110101111000011101…
…000011110100000111001
321110220201122200100002212
4132233003220132200321
5234101100421011301
64254142423104505
7305411040134531
oct36570350364071
97426648610085
102112111110201
11744817728274
122a14118a2135
1312422c23c0c1
14743261b24c1
1539e1a5d44bb
hex1ebc3a1e839

2112111110201 has 2 divisors, whose sum is σ = 2112111110202. Its totient is φ = 2112111110200.

The previous prime is 2112111110191. The next prime is 2112111110269. The reversal of 2112111110201 is 1020111112112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1057145886976 + 1054965223225 = 1028176^2 + 1027115^2 .

It is a cyclic number.

It is not a de Polignac number, because 2112111110201 - 210 = 2112111109177 is a prime.

It is a super-2 number, since 2×21121111102012 (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2112111110101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056055555100 + 1056055555101.

It is an arithmetic number, because the mean of its divisors is an integer number (1056055555101).

Almost surely, 22112111110201 is an apocalyptic number.

It is an amenable number.

2112111110201 is a deficient number, since it is larger than the sum of its proper divisors (1).

2112111110201 is an equidigital number, since it uses as much as digits as its factorization.

2112111110201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 2112111110201 its reverse (1020111112112), we get a palindrome (3132222222313).

The spelling of 2112111110201 in words is "two trillion, one hundred twelve billion, one hundred eleven million, one hundred ten thousand, two hundred one".