2221111222011 has 24 divisors (see below), whose sum is σ = 3616869212880. Its totient is φ = 1346128011360.

The previous prime is 2221111222009. The next prime is 2221111222061. The reversal of 2221111222011 is 1102221111222.

2221111222011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2221111222011 - 2¹ = 2221111222009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2221111222061) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 339928050 + ... + 339934583.

It is an arithmetic number, because the mean of its divisors is an integer number (150702883870).

Almost surely, 2^{2221111222011} is an apocalyptic number.

2221111222011 is a deficient number, since it is larger than the sum of its proper divisors (1395757990869).

2221111222011 is a wasteful number, since it uses less digits than its factorization.

2221111222011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679862664 (or 679862647 counting only the distinct ones).

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

Adding to 2221111222011 its reverse (1102221111222), we get a palindrome (3323332333233).

The spelling of 2221111222011 in words is "two trillion, two hundred twenty-one billion, one hundred eleven million, two hundred twenty-two thousand, eleven".