210210102122 has 4 divisors (see below), whose sum is σ = 315315153186. Its totient is φ = 105105051060.

The previous prime is 210210102121. The next prime is 210210102131. The reversal of 210210102122 is 221201012012.

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., 111476522161 + 98733579961 = 333881^2 + 314219^2 .

It is a junction number, because it is equal to n+sod(n) for n = 210210102097 and 210210102106.

It is not an unprimeable number, because it can be changed into a prime (210210102121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52552525529 + ... + 52552525532.

Almost surely, 2^210210102122 is an apocalyptic number.

210210102122 is a deficient number, since it is larger than the sum of its proper divisors (105105051064).

210210102122 is a wasteful number, since it uses less digits than its factorization.

210210102122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105105051063.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 210210102122 its reverse (221201012012), we get a palindrome (431411114134).

The spelling of 210210102122 in words is "two hundred ten billion, two hundred ten million, one hundred two thousand, one hundred twenty-two".