210100121010120 has 128 divisors (see below), whose sum is σ = 687644340986880. Its totient is φ = 50930107488000.

The previous prime is 210100121010113. The next prime is 210100121010163. The reversal of 210100121010120 is 21010121001012.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 210100121010096 and 210100121010105.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 15607335 + ... + 25764105.

It is an arithmetic number, because the mean of its divisors is an integer number (5372221413960).

Almost surely, 2^{210100121010120} is an apocalyptic number.

210100121010120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210100121010120 is an abundant number, since it is smaller than the sum of its proper divisors (477544219976760).

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

210100121010120 is a wasteful number, since it uses less digits than its factorization.

210100121010120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10172467 (or 10172463 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 210100121010120 its reverse (21010121001012), we get a palindrome (231110242011132).

The spelling of 210100121010120 in words is "two hundred ten trillion, one hundred billion, one hundred twenty-one million, ten thousand, one hundred twenty".