210120002212120 has 128 divisors (see below), whose sum is σ = 634768118691840. Its totient is φ = 60454106519040.

The previous prime is 210120002212069. The next prime is 210120002212121. The reversal of 210120002212120 is 21212200021012.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 210120002212094 and 210120002212103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210120002212121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2623836112 + ... + 2623916191.

It is an arithmetic number, because the mean of its divisors is an integer number (4959125927280).

Almost surely, 2^{210120002212120} is an apocalyptic number.

210120002212120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210120002212120 is an abundant number, since it is smaller than the sum of its proper divisors (424648116479720).

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

210120002212120 is a wasteful number, since it uses less digits than its factorization.

210120002212120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5247752345 (or 5247752341 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 210120002212120 its reverse (21212200021012), we get a palindrome (231332202233132).

The spelling of 210120002212120 in words is "two hundred ten trillion, one hundred twenty billion, two million, two hundred twelve thousand, one hundred twenty".