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12022233231 = 39829407713
BaseRepresentation
bin10110011001001010…
…01011100010001111
31011000211221201121110
423030211023202033
5144110142430411
65304542103103
7603631203441
oct131445134217
934024851543
1012022233231
11510a267848
1223b627aa93
13119794a598
14820968491
154a56b32a6
hex2cc94b88f

12022233231 has 8 divisors (see below), whose sum is σ = 16031314480. Its totient is φ = 8013987072.

The previous prime is 12022233229. The next prime is 12022233257. The reversal of 12022233231 is 13233222021.

It is a happy number.

12022233231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12022233231 - 21 = 12022233229 is a prime.

It is a super-2 number, since 2×120222332312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12022233198 and 12022233207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12022233211) 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 7 ways as a sum of consecutive naturals, for example, 174370 + ... + 233343.

It is an arithmetic number, because the mean of its divisors is an integer number (2003914310).

Almost surely, 212022233231 is an apocalyptic number.

12022233231 is a deficient number, since it is larger than the sum of its proper divisors (4009081249).

12022233231 is an equidigital number, since it uses as much as digits as its factorization.

12022233231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417545.

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

Adding to 12022233231 its reverse (13233222021), we get a palindrome (25255455252).

The spelling of 12022233231 in words is "twelve billion, twenty-two million, two hundred thirty-three thousand, two hundred thirty-one".

Divisors: 1 3 9829 29487 407713 1223139 4007411077 12022233231