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12220416000 = 21433531317
BaseRepresentation
bin10110110000110010…
…01100000000000000
31011112122212110021000
423120121030000000
5200011411303000
65340341532000
7611555551662
oct133031140000
934478773230
1012220416000
115201119461
122450714000
1311c9a196b0
1483cdd6532
154b7cae000
hex2d864c000

12220416000 has 960 divisors, whose sum is σ = 51525452160. Its totient is φ = 2831155200.

The previous prime is 12220415993. The next prime is 12220416001. The reversal of 12220416000 is 61402221.

12220416000 is a `hidden beast` number, since 1 + 2 + 2 + 20 + 41 + 600 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (960).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (12220416001) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 718847992 + ... + 718848008.

It is an arithmetic number, because the mean of its divisors is an integer number (53672346).

Almost surely, 212220416000 is an apocalyptic number.

12220416000 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 12220416000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25762726080).

12220416000 is an abundant number, since it is smaller than the sum of its proper divisors (39305036160).

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

12220416000 is an equidigital number, since it uses as much as digits as its factorization.

12220416000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82 (or 40 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 12220416000 its reverse (61402221), we get a palindrome (12281818221).

The spelling of 12220416000 in words is "twelve billion, two hundred twenty million, four hundred sixteen thousand".