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20223313021220 = 2251011165651061
BaseRepresentation
bin1001001100100100110110…
…11000111000100100100100
32122121022220110022101010112
410212102123120320210210
510122314321113134340
6111002243423112152
74155041356256531
oct446223330704444
978538813271115
1020223313021220
116497727a86121
1223274b6742658
13b3908649b90a
144dcb5662dd88
152510c4d4c065
hex12649b638924

20223313021220 has 12 divisors (see below), whose sum is σ = 42468957344604. Its totient is φ = 8089325208480.

The previous prime is 20223313021193. The next prime is 20223313021277. The reversal of 20223313021220 is 2212031332202.

It can be written as a sum of positive squares in 2 ways, for example, as 7079686349824 + 13143626671396 = 2660768^2 + 3625414^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 505582825511 + ... + 505582825550.

It is an arithmetic number, because the mean of its divisors is an integer number (3539079778717).

Almost surely, 220223313021220 is an apocalyptic number.

20223313021220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20223313021220 is an abundant number, since it is smaller than the sum of its proper divisors (22245644323384).

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

20223313021220 is a wasteful number, since it uses less digits than its factorization.

20223313021220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011165651070 (or 1011165651068 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 20223313021220 its reverse (2212031332202), we get a palindrome (22435344353422).

The spelling of 20223313021220 in words is "twenty trillion, two hundred twenty-three billion, three hundred thirteen million, twenty-one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 1011165651061 2022331302122 4044662604244 5055828255305 10111656510610 20223313021220