210211211001002 has 4 divisors (see below), whose sum is σ = 315316816501506. Its totient is φ = 105105605500500.

The previous prime is 210211211000963. The next prime is 210211211001013. The reversal of 210211211001002 is 200100112112012.

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., 209974909041121 + 236301959881 = 14490511^2 + 486109^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52552802750249 + ... + 52552802750252.

Almost surely, 2^{210211211001002} is an apocalyptic number.

210211211001002 is a deficient number, since it is larger than the sum of its proper divisors (105105605500504).

210211211001002 is a wasteful number, since it uses less digits than its factorization.

210211211001002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105105605500503.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 210211211001002 its reverse (200100112112012), we get a palindrome (410311323113014).

The spelling of 210211211001002 in words is "two hundred ten trillion, two hundred eleven billion, two hundred eleven million, one thousand, two".