212001002201 has 4 divisors (see below), whose sum is σ = 212506971600. Its totient is φ = 211495032804.

The previous prime is 212001002189. The next prime is 212001002203. The reversal of 212001002201 is 102200100212.

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 212001002201 - 2²⁶ = 211933893337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212001002203) 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, 252984071 + ... + 252984908.

It is an arithmetic number, because the mean of its divisors is an integer number (53126742900).

Almost surely, 2^212001002201 is an apocalyptic number.

It is an amenable number.

212001002201 is a deficient number, since it is larger than the sum of its proper divisors (505969399).

212001002201 is an equidigital number, since it uses as much as digits as its factorization.

212001002201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505969398.

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

Adding to 212001002201 its reverse (102200100212), we get a palindrome (314201102413).

The spelling of 212001002201 in words is "two hundred twelve billion, one million, two thousand, two hundred one".