213022222210 has 24 divisors (see below), whose sum is σ = 446042449980. Its totient is φ = 73036190304.

The previous prime is 213022222207. The next prime is 213022222211. The reversal of 213022222210 is 12222220312.

It can be written as a sum of positive squares in 2 ways, for example, as 204985279009 + 8036943201 = 452753^2 + 89649^2 .

It is not an unprimeable number, because it can be changed into a prime (213022222211) 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, 217369125 + ... + 217370104.

Almost surely, 2^213022222210 is an apocalyptic number.

213022222210 is an abundant number, since it is smaller than the sum of its proper divisors (233020227770).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213022222210 is a wasteful number, since it uses less digits than its factorization.

213022222210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434739250 (or 434739243 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 213022222210 its reverse (12222220312), we get a palindrome (225244442522).

The spelling of 213022222210 in words is "two hundred thirteen billion, twenty-two million, two hundred twenty-two thousand, two hundred ten".