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12022311331 = 61953206807
BaseRepresentation
bin10110011001001010…
…11110100110100011
31011000212002200202001
423030211132212203
5144110202430311
65304543504431
7603631650232
oct131445364643
934025080661
1012022311331
11510a310498
1223b62b8117
131197976cb4
14820988b19
154a56cb4c1
hex2cc95e9a3

12022311331 has 8 divisors (see below), whose sum is σ = 12232279584. Its totient is φ = 11812758720.

The previous prime is 12022311319. The next prime is 12022311341. The reversal of 12022311331 is 13311322021.

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

It is a cyclic number.

It is not a de Polignac number, because 12022311331 - 211 = 12022309283 is a prime.

It is a super-2 number, since 2×120223113312 (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 = 12022311299 and 12022311308.

It is not an unprimeable number, because it can be changed into a prime (12022311341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45271 + ... + 161536.

It is an arithmetic number, because the mean of its divisors is an integer number (1529034948).

Almost surely, 212022311331 is an apocalyptic number.

12022311331 is a deficient number, since it is larger than the sum of its proper divisors (209968253).

12022311331 is an equidigital number, since it uses as much as digits as its factorization.

12022311331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207821.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 12022311331 its reverse (13311322021), we get a palindrome (25333633352).

The spelling of 12022311331 in words is "twelve billion, twenty-two million, three hundred eleven thousand, three hundred thirty-one".

Divisors: 1 61 953 58133 206807 12615227 197087071 12022311331