212012201 has 4 divisors (see below), whose sum is σ = 212269392. Its totient is φ = 211755012.

The previous prime is 212012197. The next prime is 212012209. The reversal of 212012201 is 102210212.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 212012201 - 2² = 212012197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212012209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127355 + ... + 129008.

It is an arithmetic number, because the mean of its divisors is an integer number (53067348).

Almost surely, 2^212012201 is an apocalyptic number.

It is an amenable number.

212012201 is a deficient number, since it is larger than the sum of its proper divisors (257191).

212012201 is an equidigital number, since it uses as much as digits as its factorization.

212012201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257190.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 212012201 is about 14560.6387565931. The cubic root of 212012201 is about 596.2846344374.

Adding to 212012201 its reverse (102210212), we get a palindrome (314222413).

The spelling of 212012201 in words is "two hundred twelve million, twelve thousand, two hundred one".