213111120202 has 4 divisors (see below), whose sum is σ = 319666680306. Its totient is φ = 106555560100.

The previous prime is 213111120197. The next prime is 213111120227. The reversal of 213111120202 is 202021111312.

213111120202 is digitally balanced in base 3, 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 only one way, i.e., 192441019761 + 20670100441 = 438681^2 + 143771^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53277780049 + ... + 53277780052.

Almost surely, 2^213111120202 is an apocalyptic number.

213111120202 is a deficient number, since it is larger than the sum of its proper divisors (106555560104).

213111120202 is a wasteful number, since it uses less digits than its factorization.

213111120202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106555560103.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 213111120202 its reverse (202021111312), we get a palindrome (415132231514).

The spelling of 213111120202 in words is "two hundred thirteen billion, one hundred eleven million, one hundred twenty thousand, two hundred two".