222212401 has 8 divisors (see below), whose sum is σ = 226488960. Its totient is φ = 217964208.

The previous prime is 222212383. The next prime is 222212437. The reversal of 222212401 is 104212222.

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 222212401 - 2⁵ = 222212369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222212801) 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, 9075 + ... + 22951.

It is an arithmetic number, because the mean of its divisors is an integer number (28311120).

Almost surely, 2^222212401 is an apocalyptic number.

It is an amenable number.

222212401 is a deficient number, since it is larger than the sum of its proper divisors (4276559).

222212401 is a wasteful number, since it uses less digits than its factorization.

222212401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14183.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 222212401 is about 14906.7904325512. The cubic root of 222212401 is about 605.6979409733.

Adding to 222212401 its reverse (104212222), we get a palindrome (326424623).

The spelling of 222212401 in words is "two hundred twenty-two million, two hundred twelve thousand, four hundred one".