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12233221333 = 31394620043
BaseRepresentation
bin10110110010010100…
…00010010011010101
31011120112222000212121
423121022002103111
5200023201040313
65341520215541
7612102444214
oct133112022325
934515860777
1012233221333
115208375283
122454a6a5b1
1311cc581108
148409ab07b
154b8e8d28d
hex2d92824d5

12233221333 has 4 divisors (see below), whose sum is σ = 12627841408. Its totient is φ = 11838601260.

The previous prime is 12233221321. The next prime is 12233221379. The reversal of 12233221333 is 33312233221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 33312233221 = 307108508903.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12233221333 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12233221298 and 12233221307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12233221313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197309991 + ... + 197310052.

It is an arithmetic number, because the mean of its divisors is an integer number (3156960352).

Almost surely, 212233221333 is an apocalyptic number.

It is an amenable number.

12233221333 is a deficient number, since it is larger than the sum of its proper divisors (394620075).

12233221333 is an equidigital number, since it uses as much as digits as its factorization.

12233221333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394620074.

The product of its digits is 3888, while the sum is 25.

Adding to 12233221333 its reverse (33312233221), we get a palindrome (45545454554).

The spelling of 12233221333 in words is "twelve billion, two hundred thirty-three million, two hundred twenty-one thousand, three hundred thirty-three".

Divisors: 1 31 394620043 12233221333