2111111122011 has 32 divisors (see below), whose sum is σ = 2894867189760. Its totient is φ = 1367655321600.

The previous prime is 2111111122007. The next prime is 2111111122063. The reversal of 2111111122011 is 1102211111112.

It is not a de Polignac number, because 2111111122011 - 2² = 2111111122007 is a prime.

It is a super-3 number, since 3×2111111122011³ (a number of 38 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (2111111122411) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 198426030 + ... + 198436668.

It is an arithmetic number, because the mean of its divisors is an integer number (90464599680).

Almost surely, 2^{2111111122011} is an apocalyptic number.

2111111122011 is a deficient number, since it is larger than the sum of its proper divisors (783756067749).

2111111122011 is a wasteful number, since it uses less digits than its factorization.

2111111122011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16907.

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

Adding to 2111111122011 its reverse (1102211111112), we get a palindrome (3213322233123).

The spelling of 2111111122011 in words is "two trillion, one hundred eleven billion, one hundred eleven million, one hundred twenty-two thousand, eleven".