2011112221222 has 16 divisors (see below), whose sum is σ = 3249845155872. Its totient is φ = 927884093760.

The previous prime is 2011112221199. The next prime is 2011112221319. The reversal of 2011112221222 is 2221222111102.

It is a self number, because there is not a number n which added to its sum of digits gives 2011112221222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13321279 + ... + 13471402.

It is an arithmetic number, because the mean of its divisors is an integer number (203115322242).

Almost surely, 2^{2011112221222} is an apocalyptic number.

2011112221222 is a deficient number, since it is larger than the sum of its proper divisors (1238732934650).

2011112221222 is a wasteful number, since it uses less digits than its factorization.

2011112221222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26795583.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 2011112221222 its reverse (2221222111102), we get a palindrome (4232334332324).

The spelling of 2011112221222 in words is "two trillion, eleven billion, one hundred twelve million, two hundred twenty-one thousand, two hundred twenty-two".