1228160000 has 220 divisors, whose sum is σ = 3261362280. Its totient is φ = 460800000.

The previous prime is 1228159997. The next prime is 1228160029. The reversal of 1228160000 is 618221.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 12159950 + ... + 12160050.

It is an arithmetic number, because the mean of its divisors is an integer number (14824374).

Almost surely, 2^1228160000 is an apocalyptic number.

1228160000 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 1228160000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1630681140).

1228160000 is an abundant number, since it is smaller than the sum of its proper divisors (2033202280).

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

1228160000 is an equidigital number, since it uses as much as digits as its factorization.

1228160000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160 (or 127 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 1228160000 is about 35045.1137820952. The cubic root of 1228160000 is about 1070.9067342413.

Adding to 1228160000 its reverse (618221), we get a palindrome (1228778221).

The spelling of 1228160000 in words is "one billion, two hundred twenty-eight million, one hundred sixty thousand".