Search a number
-
+
22111110101 = 211104791991
BaseRepresentation
bin10100100101111011…
…001100001111010101
32010001221221202212202
4110211323030033111
5330240421010401
614054021454245
71411635222563
oct244573141725
963057852782
1022111110101
119417166313
124350b71385
132114b85702
1410da824a33
1589627a06b
hex525ecc3d5

22111110101 has 4 divisors (see below), whose sum is σ = 22215902304. Its totient is φ = 22006317900.

The previous prime is 22111110079. The next prime is 22111110107. The reversal of 22111110101 is 10101111122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-22111110101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22111110107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52395785 + ... + 52396206.

It is an arithmetic number, because the mean of its divisors is an integer number (5553975576).

Almost surely, 222111110101 is an apocalyptic number.

It is an amenable number.

22111110101 is a deficient number, since it is larger than the sum of its proper divisors (104792203).

22111110101 is a wasteful number, since it uses less digits than its factorization.

22111110101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104792202.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 22111110101 its reverse (10101111122), we get a palindrome (32212221223).

The spelling of 22111110101 in words is "twenty-two billion, one hundred eleven million, one hundred ten thousand, one hundred one".

Divisors: 1 211 104791991 22111110101