1222290016 has 24 divisors (see below), whose sum is σ = 2431197720. Its totient is φ = 604843008.

The previous prime is 1222289993. The next prime is 1222290029. The reversal of 1222290016 is 6100922221.

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 3 ways as a sum of consecutive naturals, for example, 193786 + ... + 199993.

It is an arithmetic number, because the mean of its divisors is an integer number (101299905).

Almost surely, 2^1222290016 is an apocalyptic number.

1222290016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1222290016 is a deficient number, since it is larger than the sum of its proper divisors (1208907704).

1222290016 is an equidigital number, since it uses as much as digits as its factorization.

1222290016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393886 (or 393878 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 1222290016 is about 34961.2645080237. The cubic root of 1222290016 is about 1069.1978778940.

The spelling of 1222290016 in words is "one billion, two hundred twenty-two million, two hundred ninety thousand, sixteen".