213120202201 has 4 divisors (see below), whose sum is σ = 213641278900. Its totient is φ = 212599125504.

The previous prime is 213120202121. The next prime is 213120202249. The reversal of 213120202201 is 102202021312.

It is a happy number.

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 188060995600 + 25059206601 = 433660^2 + 158301^2 .

It is a cyclic number.

It is not a de Polignac number, because 213120202201 - 2²⁵ = 213086647769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213120202291) 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, 260537736 + ... + 260538553.

It is an arithmetic number, because the mean of its divisors is an integer number (53410319725).

Almost surely, 2^213120202201 is an apocalyptic number.

It is an amenable number.

213120202201 is a deficient number, since it is larger than the sum of its proper divisors (521076699).

213120202201 is an equidigital number, since it uses as much as digits as its factorization.

213120202201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521076698.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 213120202201 its reverse (102202021312), we get a palindrome (315322223513).

The spelling of 213120202201 in words is "two hundred thirteen billion, one hundred twenty million, two hundred two thousand, two hundred one".