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12220322330020 = 225787288016643
BaseRepresentation
bin1011000111010100001111…
…1110001011010110100100
31121021020210021102010012111
42301311003332023112210
53100204210004030040
641553534422130404
72400613656635050
oct261650376132644
947236707363174
1012220322330020
113991678410372
121454469280a04
136a84aa1022bc
14303676accc60
15162d2a580dea
hexb1d43f8b5a4

12220322330020 has 24 divisors (see below), whose sum is σ = 29328773592384. Its totient is φ = 4189824798816.

The previous prime is 12220322330003. The next prime is 12220322330033. The reversal of 12220322330020 is 2003322302221.

It is a junction number, because it is equal to n+sod(n) for n = 12220322329973 and 12220322330000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43644008182 + ... + 43644008461.

It is an arithmetic number, because the mean of its divisors is an integer number (1222032233016).

Almost surely, 212220322330020 is an apocalyptic number.

12220322330020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12220322330020 is an abundant number, since it is smaller than the sum of its proper divisors (17108451262364).

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

12220322330020 is a wasteful number, since it uses less digits than its factorization.

12220322330020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87288016659 (or 87288016657 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 12220322330020 its reverse (2003322302221), we get a palindrome (14223644632241).

The spelling of 12220322330020 in words is "twelve trillion, two hundred twenty billion, three hundred twenty-two million, three hundred thirty thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 87288016643 174576033286 349152066572 436440083215 611016116501 872880166430 1222032233002 1745760332860 2444064466004 3055080582505 6110161165010 12220322330020