2111122022011 has 16 divisors (see below), whose sum is σ = 2274151939840. Its totient is φ = 1953293680800.

The previous prime is 2111122022003. The next prime is 2111122022027. The reversal of 2111122022011 is 1102202211112.

It is a cyclic number.

It is not a de Polignac number, because 2111122022011 - 2³ = 2111122022003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2111122022081) 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, 7958626 + ... + 8219608.

It is an arithmetic number, because the mean of its divisors is an integer number (142134496240).

Almost surely, 2^{2111122022011} is an apocalyptic number.

2111122022011 is a deficient number, since it is larger than the sum of its proper divisors (163029917829).

2111122022011 is a wasteful number, since it uses less digits than its factorization.

2111122022011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270946.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2111122022011 its reverse (1102202211112), we get a palindrome (3213324233123).

The spelling of 2111122022011 in words is "two trillion, one hundred eleven billion, one hundred twenty-two million, twenty-two thousand, eleven".