1222932816 has 200 divisors, whose sum is σ = 4221765504. Its totient is φ = 334160640.

The previous prime is 1222932779. The next prime is 1222932827. The reversal of 1222932816 is 6182392221.

It is a happy number.

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

It is a nude number because it is divisible by every one of its digits.

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 39 ways as a sum of consecutive naturals, for example, 205726 + ... + 211586.

Almost surely, 2^1222932816 is an apocalyptic number.

1222932816 is a gapful number since it is divisible by the number (16) 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 1222932816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2110882752).

1222932816 is an abundant number, since it is smaller than the sum of its proper divisors (2998832688).

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

1222932816 is a wasteful number, since it uses less digits than its factorization.

1222932816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5911 (or 5896 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 1222932816 is about 34970.4563310232. The cubic root of 1222932816 is about 1069.3852747590.

The spelling of 1222932816 in words is "one billion, two hundred twenty-two million, nine hundred thirty-two thousand, eight hundred sixteen".