210120102220120 has 32 divisors (see below), whose sum is σ = 472805887741200. Its totient is φ = 84041701733248.

The previous prime is 210120102220087. The next prime is 210120102220181. The reversal of 210120102220120 is 21022201021012.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 210120102220094 and 210120102220103.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 197561599 + ... + 198622318.

Almost surely, 2^{210120102220120} is an apocalyptic number.

210120102220120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210120102220120 is an abundant number, since it is smaller than the sum of its proper divisors (262685785521080).

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

210120102220120 is a wasteful number, since it uses less digits than its factorization.

210120102220120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396197187 (or 396197183 counting only the distinct ones).

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

Adding to 210120102220120 its reverse (21022201021012), we get a palindrome (231142303241132).

The spelling of 210120102220120 in words is "two hundred ten trillion, one hundred twenty billion, one hundred two million, two hundred twenty thousand, one hundred twenty".