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12120330404444 = 226781446848931
BaseRepresentation
bin1011000001011111101111…
…1111010000001001011100
31120220200200122221222222112
42300113323333100021130
53042034414040420234
641440000344133152
72360444041406123
oct260277377201134
946820618858875
1012120330404444
11395322659a749
1214390021671b8
1369bc3318bb32
142dc8acb70aba
15160426dddace
hexb05fbfd025c

12120330404444 has 12 divisors (see below), whose sum is σ = 21213706197768. Its totient is φ = 6059271490800.

The previous prime is 12120330404443. The next prime is 12120330404449. The reversal of 12120330404444 is 44440403302121.

It is a super-2 number, since 2×121203304044442 (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12120330404444.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12120330404443) 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, 223397342 + ... + 223451589.

It is an arithmetic number, because the mean of its divisors is an integer number (1767808849814).

Almost surely, 212120330404444 is an apocalyptic number.

It is an amenable number.

12120330404444 is a deficient number, since it is larger than the sum of its proper divisors (9093375793324).

12120330404444 is a wasteful number, since it uses less digits than its factorization.

12120330404444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446855716 (or 446855714 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 12120330404444 its reverse (44440403302121), we get a palindrome (56560733706565).

The spelling of 12120330404444 in words is "twelve trillion, one hundred twenty billion, three hundred thirty million, four hundred four thousand, four hundred forty-four".

Divisors: 1 2 4 6781 13562 27124 446848931 893697862 1787395724 3030082601111 6060165202222 12120330404444