210210121210120 has 32 divisors (see below), whose sum is σ = 473439675847320. Its totient is φ = 84001043484160.

The previous prime is 210210121210049. The next prime is 210210121210121. The reversal of 210210121210120 is 21012121012012.

It can be written as a sum of positive squares in 4 ways, for example, as 72985343577316 + 137224777632804 = 8543146^2 + 11714298^2 .

It is a junction number, because it is equal to n+sod(n) for n = 210210121210094 and 210210121210103.

It is not an unprimeable number, because it can be changed into a prime (210210121210121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2593865221 + ... + 2593946260.

Almost surely, 2^{210210121210120} is an apocalyptic number.

210210121210120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210210121210120 is an abundant number, since it is smaller than the sum of its proper divisors (263229554637200).

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

210210121210120 is a wasteful number, since it uses less digits than its factorization.

210210121210120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5187812505 (or 5187812501 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 210210121210120 its reverse (21012121012012), we get a palindrome (231222242222132).

The spelling of 210210121210120 in words is "two hundred ten trillion, two hundred ten billion, one hundred twenty-one million, two hundred ten thousand, one hundred twenty".