Search a number
-
+
12220210206 = 2331446115649
BaseRepresentation
bin10110110000110000…
…11001110000011110
31011112122110222222000
423120120121300132
5200011333211311
65340333303130
7611554034001
oct133030316036
934478428860
1012220210206
115200a98886
122450634aa6
1311c9976b19
1483cd81538
154b7c6d056
hex2d8619c1e

12220210206 has 32 divisors (see below), whose sum is σ = 27159636000. Its totient is φ = 4072861440.

The previous prime is 12220210133. The next prime is 12220210207. The reversal of 12220210206 is 60201202221.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220210207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 773070 + ... + 788718.

It is an arithmetic number, because the mean of its divisors is an integer number (848738625).

Almost surely, 212220210206 is an apocalyptic number.

12220210206 is an abundant number, since it is smaller than the sum of its proper divisors (14939425794).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12220210206 is a wasteful number, since it uses less digits than its factorization.

12220210206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30121 (or 30115 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 12220210206 its reverse (60201202221), we get a palindrome (72421412427).

The spelling of 12220210206 in words is "twelve billion, two hundred twenty million, two hundred ten thousand, two hundred six".

Divisors: 1 2 3 6 9 18 27 54 14461 15649 28922 31298 43383 46947 86766 93894 130149 140841 260298 281682 390447 422523 780894 845046 226300189 452600378 678900567 1357801134 2036701701 4073403402 6110105103 12220210206