1220229360 has 560 divisors, whose sum is σ = 5041790400. Its totient is φ = 274337280.

The previous prime is 1220229341. The next prime is 1220229371. The reversal of 1220229360 is 639220221.

It is a tau number, because it is divible by the number of its divisors (560).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 20003730 + ... + 20003790.

Almost surely, 2^1220229360 is an apocalyptic number.

1220229360 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 1220229360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2520895200).

1220229360 is an abundant number, since it is smaller than the sum of its proper divisors (3821561040).

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

1220229360 is an frugal number, since it uses more digits than its factorization.

1220229360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113 (or 78 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 1220229360 is about 34931.7815176953. The cubic root of 1220229360 is about 1068.5966871495.

Adding to 1220229360 its reverse (639220221), we get a palindrome (1859449581).

The spelling of 1220229360 in words is "one billion, two hundred twenty million, two hundred twenty-nine thousand, three hundred sixty".