Search a number
-
+
12302222212 = 2271932276503
BaseRepresentation
bin10110111010100010…
…10000001110000100
31011202100210122021201
423131101100032010
5200143332102322
65352423152244
7613601110030
oct133521201604
934670718251
1012302222212
1152433136a5
122473ba5684
13121095cc37
14849c0d1c0
154c006cd27
hex2dd450384

12302222212 has 24 divisors (see below), whose sum is σ = 24731939456. Its totient is φ = 5245060608.

The previous prime is 12302222189. The next prime is 12302222297. The reversal of 12302222212 is 21222220321.

It is a self number, because there is not a number n which added to its sum of digits gives 12302222212.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1132848 + ... + 1143655.

Almost surely, 212302222212 is an apocalyptic number.

It is an amenable number.

12302222212 is an abundant number, since it is smaller than the sum of its proper divisors (12429717244).

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

12302222212 is a wasteful number, since it uses less digits than its factorization.

12302222212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2276707 (or 2276705 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 12302222212 its reverse (21222220321), we get a palindrome (33524442533).

The spelling of 12302222212 in words is "twelve billion, three hundred two million, two hundred twenty-two thousand, two hundred twelve".

Divisors: 1 2 4 7 14 28 193 386 772 1351 2702 5404 2276503 4553006 9106012 15935521 31871042 63742084 439365079 878730158 1757460316 3075555553 6151111106 12302222212