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13222012332 = 2231101834361
BaseRepresentation
bin11000101000001011…
…11110010110101100
31021010110112211010110
430110011332112230
5204034313343312
610024001340020
7645440151624
oct142405762654
937113484113
1013222012332
115675532621
122690037610
131329395349
148d603b884
15525ba843c
hex31417e5ac

13222012332 has 12 divisors (see below), whose sum is σ = 30851362136. Its totient is φ = 4407337440.

The previous prime is 13222012319. The next prime is 13222012333. The reversal of 13222012332 is 23321022231.

It is a happy number.

13222012332 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×132220123322 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13222012299 and 13222012308.

It is not an unprimeable number, because it can be changed into a prime (13222012333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 550917169 + ... + 550917192.

Almost surely, 213222012332 is an apocalyptic number.

13222012332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13222012332 is an abundant number, since it is smaller than the sum of its proper divisors (17629349804).

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

13222012332 is a wasteful number, since it uses less digits than its factorization.

13222012332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1101834368 (or 1101834366 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 13222012332 its reverse (23321022231), we get a palindrome (36543034563).

The spelling of 13222012332 in words is "thirteen billion, two hundred twenty-two million, twelve thousand, three hundred thirty-two".

Divisors: 1 2 3 4 6 12 1101834361 2203668722 3305503083 4407337444 6611006166 13222012332