2112200111 has 4 divisors (see below), whose sum is σ = 2413942992. Its totient is φ = 1810457232.

The previous prime is 2112200107. The next prime is 2112200117. The reversal of 2112200111 is 1110022112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2112200111 - 2² = 2112200107 is a prime.

It is a super-2 number, since 2×2112200111² = 8922778617816824642, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2112200092 and 2112200101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112200117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150871430 + ... + 150871443.

It is an arithmetic number, because the mean of its divisors is an integer number (603485748).

Almost surely, 2^2112200111 is an apocalyptic number.

2112200111 is a deficient number, since it is larger than the sum of its proper divisors (301742881).

2112200111 is an equidigital number, since it uses as much as digits as its factorization.

2112200111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301742880.

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

The square root of 2112200111 is about 45958.6782990982. The cubic root of 2112200111 is about 1283.0542523665.

Adding to 2112200111 its reverse (1110022112), we get a palindrome (3222222223).

The spelling of 2112200111 in words is "two billion, one hundred twelve million, two hundred thousand, one hundred eleven".