210211102121212 has 12 divisors (see below), whose sum is σ = 368065208091280. Its totient is φ = 105049614095136.

The previous prime is 210211102121201. The next prime is 210211102121269. The reversal of 210211102121212 is 212121201112012.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 210211102121212.

It is a congruent number.

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 in 3 ways as a sum of consecutive naturals, for example, 13984232913 + ... + 13984247944.

Almost surely, 2^{210211102121212} is an apocalyptic number.

It is an amenable number.

210211102121212 is a deficient number, since it is larger than the sum of its proper divisors (157854105970068).

210211102121212 is a wasteful number, since it uses less digits than its factorization.

210211102121212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27968482740 (or 27968482738 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 210211102121212 its reverse (212121201112012), we get a palindrome (422332303233224).

The spelling of 210211102121212 in words is "two hundred ten trillion, two hundred eleven billion, one hundred two million, one hundred twenty-one thousand, two hundred twelve".