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12220032313320 = 23351385318015099
BaseRepresentation
bin1011000111010011001010…
…1011110110011111101000
31121021020001001200202002020
42301310302223312133220
53100203111233011240
641553445542104440
72400603535555236
oct261646253663750
947236031622066
1012220032313320
113991539735547
1214543a811b120
136a8461cbb5a0
1430364a397956
15162d0ed950d0
hexb1d32af67e8

12220032313320 has 256 divisors, whose sum is σ = 39556091232000. Its totient is φ = 3002224435200.

The previous prime is 12220032313277. The next prime is 12220032313331. The reversal of 12220032313320 is 2331323002221.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2396552131 + ... + 2396557229.

It is an arithmetic number, because the mean of its divisors is an integer number (154515981375).

Almost surely, 212220032313320 is an apocalyptic number.

12220032313320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12220032313320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19778045616000).

12220032313320 is an abundant number, since it is smaller than the sum of its proper divisors (27336058918680).

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

12220032313320 is a wasteful number, since it uses less digits than its factorization.

12220032313320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7780 (or 7776 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 12220032313320 its reverse (2331323002221), we get a palindrome (14551355315541).

The spelling of 12220032313320 in words is "twelve trillion, two hundred twenty billion, thirty-two million, three hundred thirteen thousand, three hundred twenty".