2111101202100 has 144 divisors (see below), whose sum is σ = 6729378417216. Its totient is φ = 506714880000.

The previous prime is 2111101202059. The next prime is 2111101202131. The reversal of 2111101202100 is 12021011112.

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 47 ways as a sum of consecutive naturals, for example, 2833669 + ... + 3500268.

It is an arithmetic number, because the mean of its divisors is an integer number (46731794564).

Almost surely, 2^{2111101202100} is an apocalyptic number.

2111101202100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2111101202100 is an abundant number, since it is smaller than the sum of its proper divisors (4618277215116).

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

2111101202100 is a wasteful number, since it uses less digits than its factorization.

2111101202100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6334066 (or 6334059 counting only the distinct ones).

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

Adding to 2111101202100 its reverse (12021011112), we get a palindrome (2123122213212).

The spelling of 2111101202100 in words is "two trillion, one hundred eleven billion, one hundred one million, two hundred two thousand, one hundred".