210010121121220 has 24 divisors (see below), whose sum is σ = 504024290691264. Its totient is φ = 72003470098656.

The previous prime is 210010121121187. The next prime is 210010121121223. The reversal of 210010121121220 is 22121121010012.

It is a junction number, because it is equal to n+sod(n) for n = 210010121121194 and 210010121121203.

It is not an unprimeable number, because it can be changed into a prime (210010121121223) by changing a digit.

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, 750036146722 + ... + 750036147001.

It is an arithmetic number, because the mean of its divisors is an integer number (21001012112136).

Almost surely, 2^{210010121121220} is an apocalyptic number.

210010121121220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210010121121220 is an abundant number, since it is smaller than the sum of its proper divisors (294014169570044).

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

210010121121220 is a wasteful number, since it uses less digits than its factorization.

210010121121220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1500072293739 (or 1500072293737 counting only the distinct ones).

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

Adding to 210010121121220 its reverse (22121121010012), we get a palindrome (232131242131232).

The spelling of 210010121121220 in words is "two hundred ten trillion, ten billion, one hundred twenty-one million, one hundred twenty-one thousand, two hundred twenty".