2121110320120 has 64 divisors (see below), whose sum is σ = 5206810883040. Its totient is φ = 771246297600.

The previous prime is 2121110320099. The next prime is 2121110320141. The reversal of 2121110320120 is 210230111212.

It is an interprime number because it is at equal distance from previous prime (2121110320099) and next prime (2121110320141).

It is a junction number, because it is equal to n+sod(n) for n = 2121110320094 and 2121110320103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5048530 + ... + 5452510.

Almost surely, 2^{2121110320120} is an apocalyptic number.

2121110320120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2121110320120 is an abundant number, since it is smaller than the sum of its proper divisors (3085700562920).

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

2121110320120 is a wasteful number, since it uses less digits than its factorization.

2121110320120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415936 (or 415932 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 2121110320120 its reverse (210230111212), we get a palindrome (2331340431332).

The spelling of 2121110320120 in words is "two trillion, one hundred twenty-one billion, one hundred ten million, three hundred twenty thousand, one hundred twenty".