111211011102100 has 72 divisors (see below), whose sum is σ = 297018946598528. Its totient is φ = 35196451862400.

The previous prime is 111211011102047. The next prime is 111211011102127. The reversal of 111211011102100 is 1201110112111.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6110486016 + ... + 6110504215.

Almost surely, 2^{111211011102100} is an apocalyptic number.

111211011102100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111211011102100 is an abundant number, since it is smaller than the sum of its proper divisors (185807935496428).

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

111211011102100 is a wasteful number, since it uses less digits than its factorization.

111211011102100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12220990265 (or 12220990258 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 111211011102100 its reverse (1201110112111), we get a palindrome (112412121214211).

It can be divided in two parts, 111211011 and 102100, that added together give a palindrome (111313111).

The spelling of 111211011102100 in words is "one hundred eleven trillion, two hundred eleven billion, eleven million, one hundred two thousand, one hundred".