2112211100000 has 72 divisors (see below), whose sum is σ = 5197687076736. Its totient is φ = 844884400000.

The previous prime is 2112211099987. The next prime is 2112211100071. The reversal of 2112211100000 is 11122112.

It is a super-2 number, since 2×2112211100000² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10461056 + ... + 10661055.

It is an arithmetic number, because the mean of its divisors is an integer number (72190098288).

Almost surely, 2^{2112211100000} is an apocalyptic number.

2112211100000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2112211100000 is an abundant number, since it is smaller than the sum of its proper divisors (3085475976736).

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

2112211100000 is an frugal number, since it uses more digits than its factorization.

2112211100000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21122146 (or 21122118 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 2112211100000 its reverse (11122112), we get a palindrome (2112222222112).

The spelling of 2112211100000 in words is "two trillion, one hundred twelve billion, two hundred eleven million, one hundred thousand".