111021120002100 has 288 divisors, whose sum is σ = 408656594304000. Its totient is φ = 23069323401600.

The previous prime is 111021120002057. The next prime is 111021120002113. The reversal of 111021120002100 is 1200021120111.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 47910030 + ... + 50173829.

It is an arithmetic number, because the mean of its divisors is an integer number (1418946508000).

Almost surely, 2^{111021120002100} is an apocalyptic number.

111021120002100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111021120002100 is an abundant number, since it is smaller than the sum of its proper divisors (297635474301900).

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

111021120002100 is a wasteful number, since it uses less digits than its factorization.

111021120002100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98083908 (or 98083887 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 111021120002100 its reverse (1200021120111), we get a palindrome (112221141122211).

The spelling of 111021120002100 in words is "one hundred eleven trillion, twenty-one billion, one hundred twenty million, two thousand, one hundred".