211102121212120 has 64 divisors (see below), whose sum is σ = 479883055024800. Its totient is φ = 83569177743360.

The previous prime is 211102121212049. The next prime is 211102121212123. The reversal of 211102121212120 is 21212121201112.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211102121212123) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 317319435 + ... + 317984005.

Almost surely, 2^{211102121212120} is an apocalyptic number.

211102121212120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211102121212120 is an abundant number, since it is smaller than the sum of its proper divisors (268780933812680).

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

211102121212120 is a wasteful number, since it uses less digits than its factorization.

211102121212120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 746548 (or 746544 counting only the distinct ones).

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

Adding to 211102121212120 its reverse (21212121201112), we get a palindrome (232314242413232).

The spelling of 211102121212120 in words is "two hundred eleven trillion, one hundred two billion, one hundred twenty-one million, two hundred twelve thousand, one hundred twenty".