222300021 has 8 divisors (see below), whose sum is σ = 296504064. Its totient is φ = 148148000.

The previous prime is 222300011. The next prime is 222300047. The reversal of 222300021 is 120003222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 222300021 - 2¹⁷ = 222168949 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 (222300011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1605 + ... + 21146.

It is an arithmetic number, because the mean of its divisors is an integer number (37063008).

Almost surely, 2^222300021 is an apocalyptic number.

It is an amenable number.

222300021 is a deficient number, since it is larger than the sum of its proper divisors (74204043).

222300021 is a wasteful number, since it uses less digits than its factorization.

222300021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26011.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 222300021 is about 14909.7290719852. The cubic root of 222300021 is about 605.7775409108. Note that the first 3 decimals are identical.

Adding to 222300021 its reverse (120003222), we get a palindrome (342303243).

The spelling of 222300021 in words is "two hundred twenty-two million, three hundred thousand, twenty-one".