210123122210 has 16 divisors (see below), whose sum is σ = 378227651256. Its totient is φ = 84047908608.

The previous prime is 210123122207. The next prime is 210123122219. The reversal of 210123122210 is 12221321012.

It can be written as a sum of positive squares in 4 ways, for example, as 203068298161 + 7054824049 = 450631^2 + 83993^2 .

It is not an unprimeable number, because it can be changed into a prime (210123122219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 709604 + ... + 961136.

Almost surely, 2^210123122210 is an apocalyptic number.

210123122210 is a deficient number, since it is larger than the sum of its proper divisors (168104529046).

210123122210 is a wasteful number, since it uses less digits than its factorization.

210123122210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335077.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 210123122210 its reverse (12221321012), we get a palindrome (222344443222).

The spelling of 210123122210 in words is "two hundred ten billion, one hundred twenty-three million, one hundred twenty-two thousand, two hundred ten".