222446691 has 12 divisors (see below), whose sum is σ = 322042968. Its totient is φ = 147960384.

The previous prime is 222446677. The next prime is 222446711. The reversal of 222446691 is 196644222.

It is not a de Polignac number, because 222446691 - 2⁵ = 222446659 is a prime.

It is not an unprimeable number, because it can be changed into a prime (222441691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23910 + ... + 31883.

It is an arithmetic number, because the mean of its divisors is an integer number (26836914).

Almost surely, 2^222446691 is an apocalyptic number.

222446691 is a deficient number, since it is larger than the sum of its proper divisors (99596277).

222446691 is a wasteful number, since it uses less digits than its factorization.

222446691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56242 (or 56239 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 222446691 is about 14914.6468613910. The cubic root of 222446691 is about 605.9107390668.

The spelling of 222446691 in words is "two hundred twenty-two million, four hundred forty-six thousand, six hundred ninety-one".