212122201 has 8 divisors (see below), whose sum is σ = 216846560. Its totient is φ = 207443808.

The previous prime is 212122199. The next prime is 212122237. The reversal of 212122201 is 102221212.

It is a happy number.

212122201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 212122201 - 2¹ = 212122199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212122241) 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, 2076 + ... + 20701.

It is an arithmetic number, because the mean of its divisors is an integer number (27105820).

Almost surely, 2^212122201 is an apocalyptic number.

It is an amenable number.

212122201 is a deficient number, since it is larger than the sum of its proper divisors (4724359).

212122201 is a wasteful number, since it uses less digits than its factorization.

212122201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22983.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 212122201 is about 14564.4155735821. The cubic root of 212122201 is about 596.3877416627.

Adding to 212122201 its reverse (102221212), we get a palindrome (314343413).

The spelling of 212122201 in words is "two hundred twelve million, one hundred twenty-two thousand, two hundred one".