Search a number
-
+
12102202211 = 111100200201
BaseRepresentation
bin10110100010101100…
…01111001101100011
31011020102102120102112
423101112033031203
5144241130432321
65320520105535
7605622010241
oct132126171543
934212376375
1012102202211
115150417710
1224190052ab
1311ab3997c8
1482b423791
154ac70ca5b
hex2d158f363

12102202211 has 4 divisors (see below), whose sum is σ = 13202402424. Its totient is φ = 11002002000.

The previous prime is 12102202181. The next prime is 12102202219. The reversal of 12102202211 is 11220220121.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12102202211 - 210 = 12102201187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12102202219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 550100090 + ... + 550100111.

It is an arithmetic number, because the mean of its divisors is an integer number (3300600606).

Almost surely, 212102202211 is an apocalyptic number.

12102202211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12102202211 is a deficient number, since it is larger than the sum of its proper divisors (1100200213).

12102202211 is a wasteful number, since it uses less digits than its factorization.

12102202211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100200212.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12102202211 its reverse (11220220121), we get a palindrome (23322422332).

The spelling of 12102202211 in words is "twelve billion, one hundred two million, two hundred two thousand, two hundred eleven".

Divisors: 1 11 1100200201 12102202211