222368421 has 32 divisors (see below), whose sum is σ = 332107776. Its totient is φ = 131192000.

The previous prime is 222368413. The next prime is 222368423. The reversal of 222368421 is 124863222.

It is a cyclic number.

It is not a de Polignac number, because 222368421 - 2³ = 222368413 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222368423) 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 31 ways as a sum of consecutive naturals, for example, 482131 + ... + 482591.

It is an arithmetic number, because the mean of its divisors is an integer number (10378368).

Almost surely, 2^222368421 is an apocalyptic number.

It is an amenable number.

222368421 is a deficient number, since it is larger than the sum of its proper divisors (109739355).

222368421 is a wasteful number, since it uses less digits than its factorization.

222368421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 833.

The product of its digits is 9216, while the sum is 30.

The square root of 222368421 is about 14912.0226998218. The cubic root of 222368421 is about 605.8396655634.

The spelling of 222368421 in words is "two hundred twenty-two million, three hundred sixty-eight thousand, four hundred twenty-one".