1222396560 has 480 divisors, whose sum is σ = 5423438592. Its totient is φ = 238878720.

The previous prime is 1222396537. The next prime is 1222396579. The reversal of 1222396560 is 656932221.

1222396560 is a `hidden beast` number, since 1 + 2 + 2 + 2 + 3 + 96 + 560 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 941832 + ... + 943128.

Almost surely, 2^1222396560 is an apocalyptic number.

1222396560 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 1222396560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2711719296).

1222396560 is an abundant number, since it is smaller than the sum of its proper divisors (4201042032).

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

1222396560 is a wasteful number, since it uses less digits than its factorization.

1222396560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1351 (or 1342 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 1222396560 is about 34962.7882183329. The cubic root of 1222396560 is about 1069.2289434369.

The spelling of 1222396560 in words is "one billion, two hundred twenty-two million, three hundred ninety-six thousand, five hundred sixty".