213220202 has 24 divisors (see below), whose sum is σ = 347668524. Its totient is φ = 98027904.

The previous prime is 213220181. The next prime is 213220207. The reversal of 213220202 is 202022312.

It can be written as a sum of positive squares in 6 ways, for example, as 34703881 + 178516321 = 5891^2 + 13361^2 .

It is not an unprimeable number, because it can be changed into a prime (213220207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 97958 + ... + 100110.

Almost surely, 2^213220202 is an apocalyptic number.

213220202 is a deficient number, since it is larger than the sum of its proper divisors (134448322).

213220202 is a wasteful number, since it uses less digits than its factorization.

213220202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2474 (or 2461 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 213220202 is about 14602.0615667788. The cubic root of 213220202 is about 597.4149918452.

Adding to 213220202 its reverse (202022312), we get a palindrome (415242514).

It can be divided in two parts, 21 and 3220202, that added together give a palindrome (3220223).

The spelling of 213220202 in words is "two hundred thirteen million, two hundred twenty thousand, two hundred two".