212222201 has 8 divisors (see below), whose sum is σ = 214272000. Its totient is φ = 210182560.

The previous prime is 212222189. The next prime is 212222291. The reversal of 212222201 is 102222212.

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 212222201 - 2²⁶ = 145113337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212222291) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 43325 + ... + 47973.

It is an arithmetic number, because the mean of its divisors is an integer number (26784000).

Almost surely, 2^212222201 is an apocalyptic number.

It is an amenable number.

212222201 is a deficient number, since it is larger than the sum of its proper divisors (2049799).

212222201 is a wasteful number, since it uses less digits than its factorization.

212222201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5079.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 212222201 is about 14567.8481938823. The cubic root of 212222201 is about 596.4814445763.

Adding to 212222201 its reverse (102222212), we get a palindrome (314444413).

It can be divided in two parts, 21 and 2222201, that added together give a palindrome (2222222).

The spelling of 212222201 in words is "two hundred twelve million, two hundred twenty-two thousand, two hundred one".