1222292016 has 120 divisors (see below), whose sum is σ = 3751594704. Its totient is φ = 368417280.

The previous prime is 1222291997. The next prime is 1222292033. The reversal of 1222292016 is 6102922221.

It is a happy 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 23 ways as a sum of consecutive naturals, for example, 310090 + ... + 314006.

Almost surely, 2^1222292016 is an apocalyptic number.

1222292016 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 1222292016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1875797352).

1222292016 is an abundant number, since it is smaller than the sum of its proper divisors (2529302688).

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

1222292016 is a wasteful number, since it uses less digits than its factorization.

1222292016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4139 (or 4130 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 1222292016 is about 34961.2931110964. The cubic root of 1222292016 is about 1069.1984610602.

The spelling of 1222292016 in words is "one billion, two hundred twenty-two million, two hundred ninety-two thousand, sixteen".