1210101212120 has 96 divisors (see below), whose sum is σ = 2902026067920. Its totient is φ = 454023878400.

The previous prime is 1210101212119. The next prime is 1210101212141. The reversal of 1210101212120 is 212121010121.

It is a junction number, because it is equal to n+sod(n) for n = 1210101212095 and 1210101212104.

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 23 ways as a sum of consecutive naturals, for example, 1043579 + ... + 1873301.

Almost surely, 2^{1210101212120} is an apocalyptic number.

1210101212120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1210101212120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1451013033960).

1210101212120 is an abundant number, since it is smaller than the sum of its proper divisors (1691924855800).

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

1210101212120 is a wasteful number, since it uses less digits than its factorization.

1210101212120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 829873 (or 829850 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1210101212120 its reverse (212121010121), we get a palindrome (1422222222241).

The spelling of 1210101212120 in words is "one trillion, two hundred ten billion, one hundred one million, two hundred twelve thousand, one hundred twenty".