1222996320 has 960 divisors, whose sum is σ = 5716884096. Its totient is φ = 238878720.

The previous prime is 1222996297. The next prime is 1222996349. The reversal of 1222996320 is 236992221.

1222996320 is a `hidden beast` number, since 12 + 2 + 2 + 9 + 9 + 632 + 0 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 20049090 + ... + 20049150.

Almost surely, 2^1222996320 is an apocalyptic number.

1222996320 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 1222996320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2858442048).

1222996320 is an abundant number, since it is smaller than the sum of its proper divisors (4493887776).

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

1222996320 is a wasteful number, since it uses less digits than its factorization.

1222996320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125 (or 108 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 1222996320 is about 34971.3642856552. The cubic root of 1222996320 is about 1069.4037846521.

The spelling of 1222996320 in words is "one billion, two hundred twenty-two million, nine hundred ninety-six thousand, three hundred twenty".