2111101220120 has 16 divisors (see below), whose sum is σ = 4749977745360. Its totient is φ = 844440488032.

The previous prime is 2111101220099. The next prime is 2111101220149. The reversal of 2111101220120 is 210221011112.

It is a junction number, because it is equal to n+sod(n) for n = 2111101220095 and 2111101220104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26388765212 + ... + 26388765291.

It is an arithmetic number, because the mean of its divisors is an integer number (296873609085).

Almost surely, 2^{2111101220120} is an apocalyptic number.

2111101220120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2111101220120 is an abundant number, since it is smaller than the sum of its proper divisors (2638876525240).

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

2111101220120 is a wasteful number, since it uses less digits than its factorization.

2111101220120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52777530514 (or 52777530510 counting only the distinct ones).

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

Adding to 2111101220120 its reverse (210221011112), we get a palindrome (2321322231232).

The spelling of 2111101220120 in words is "two trillion, one hundred eleven billion, one hundred one million, two hundred twenty thousand, one hundred twenty".