213000221201 has 4 divisors (see below), whose sum is σ = 213154458804. Its totient is φ = 212845983600.

The previous prime is 213000221179. The next prime is 213000221207. The reversal of 213000221201 is 102122000312.

It is a happy number.

213000221201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 41004225025 + 171995996176 = 202495^2 + 414724^2 .

It is a cyclic number.

It is not a de Polignac number, because 213000221201 - 2²² = 212996026897 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (213000221207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77116730 + ... + 77119491.

It is an arithmetic number, because the mean of its divisors is an integer number (53288614701).

Almost surely, 2^213000221201 is an apocalyptic number.

It is an amenable number.

213000221201 is a deficient number, since it is larger than the sum of its proper divisors (154237603).

213000221201 is a wasteful number, since it uses less digits than its factorization.

213000221201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154237602.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 213000221201 its reverse (102122000312), we get a palindrome (315122221513).

The spelling of 213000221201 in words is "two hundred thirteen billion, two hundred twenty-one thousand, two hundred one".