2120111011100 has 18 divisors (see below), whose sum is σ = 4600640894304. Its totient is φ = 848044404400.

The previous prime is 2120111011079. The next prime is 2120111011127. The reversal of 2120111011100 is 11101110212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10600554956 + ... + 10600555155.

Almost surely, 2^{2120111011100} is an apocalyptic number.

2120111011100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2120111011100 is an abundant number, since it is smaller than the sum of its proper divisors (2480529883204).

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

2120111011100 is a wasteful number, since it uses less digits than its factorization.

2120111011100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21201110125 (or 21201110118 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 2120111011100 its reverse (11101110212), we get a palindrome (2131212121312).

The spelling of 2120111011100 in words is "two trillion, one hundred twenty billion, one hundred eleven million, eleven thousand, one hundred".