213122303210 has 8 divisors (see below), whose sum is σ = 383620145796. Its totient is φ = 85248921280.

The previous prime is 213122303203. The next prime is 213122303221. The reversal of 213122303210 is 12303221312.

It can be written as a sum of positive squares in 2 ways, for example, as 212402078641 + 720224569 = 460871^2 + 26837^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×213122303210² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10656115151 + ... + 10656115170.

Almost surely, 2^213122303210 is an apocalyptic number.

213122303210 is a deficient number, since it is larger than the sum of its proper divisors (170497842586).

213122303210 is a wasteful number, since it uses less digits than its factorization.

213122303210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21312230328.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 213122303210 its reverse (12303221312), we get a palindrome (225425524522).

The spelling of 213122303210 in words is "two hundred thirteen billion, one hundred twenty-two million, three hundred three thousand, two hundred ten".