2112211011111 has 16 divisors (see below), whose sum is σ = 2864595525120. Its totient is φ = 1383993262400.

The previous prime is 2112211011107. The next prime is 2112211011151. The reversal of 2112211011111 is 1111101122112.

It is a cyclic number.

It is not a de Polignac number, because 2112211011111 - 2² = 2112211011107 is a prime.

It is a super-2 number, since 2×2112211011111² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112211011101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 332190 + ... + 2082011.

It is an arithmetic number, because the mean of its divisors is an integer number (179037220320).

Almost surely, 2^{2112211011111} is an apocalyptic number.

2112211011111 is a deficient number, since it is larger than the sum of its proper divisors (752384514009).

2112211011111 is a wasteful number, since it uses less digits than its factorization.

2112211011111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2419206.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 2112211011111 its reverse (1111101122112), we get a palindrome (3223312133223).

The spelling of 2112211011111 in words is "two trillion, one hundred twelve billion, two hundred eleven million, eleven thousand, one hundred eleven".