111021210002120 has 64 divisors (see below), whose sum is σ = 281903385931200. Its totient is φ = 38979233601280.

The previous prime is 111021210002081. The next prime is 111021210002201. The reversal of 111021210002120 is 21200012120111.

111021210002120 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 111021210002095 and 111021210002104.

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, 4350348134 + ... + 4350373653.

It is an arithmetic number, because the mean of its divisors is an integer number (4404740405175).

Almost surely, 2^{111021210002120} is an apocalyptic number.

111021210002120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111021210002120 is an abundant number, since it is smaller than the sum of its proper divisors (170882175929080).

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

111021210002120 is a wasteful number, since it uses less digits than its factorization.

111021210002120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8700721838 (or 8700721834 counting only the distinct ones).

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

Adding to 111021210002120 its reverse (21200012120111), we get a palindrome (132221222122231).

The spelling of 111021210002120 in words is "one hundred eleven trillion, twenty-one billion, two hundred ten million, two thousand, one hundred twenty".