2221211122011 has 20 divisors (see below), whose sum is σ = 3792120576112. Its totient is φ = 1269263497968.

The previous prime is 2221211122001. The next prime is 2221211122033. The reversal of 2221211122011 is 1102211121222.

2221211122011 is a `hidden beast` number, since 2 + 221 + 211 + 1 + 220 + 11 = 666.

It is not a de Polignac number, because 2221211122011 - 2¹⁵ = 2221211089243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2221211122001) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1958739400 + ... + 1958740533.

Almost surely, 2^{2221211122011} is an apocalyptic number.

2221211122011 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2221211122011 is a deficient number, since it is larger than the sum of its proper divisors (1570909454101).

2221211122011 is an equidigital number, since it uses as much as digits as its factorization.

2221211122011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3917479952 (or 3917479943 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 2221211122011 its reverse (1102211121222), we get a palindrome (3323422243233).

The spelling of 2221211122011 in words is "two trillion, two hundred twenty-one billion, two hundred eleven million, one hundred twenty-two thousand, eleven".