2011111221122 has 16 divisors (see below), whose sum is σ = 3196140780960. Its totient is φ = 945805885248.

The previous prime is 2011111221101. The next prime is 2011111221179. The reversal of 2011111221122 is 2211221111102.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 2011111221122.

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, 18676628 + ... + 18783999.

It is an arithmetic number, because the mean of its divisors is an integer number (199758798810).

Almost surely, 2^{2011111221122} is an apocalyptic number.

2011111221122 is a deficient number, since it is larger than the sum of its proper divisors (1185029559838).

2011111221122 is a wasteful number, since it uses less digits than its factorization.

2011111221122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37462225.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 2011111221122 its reverse (2211221111102), we get a palindrome (4222332332224).

The spelling of 2011111221122 in words is "two trillion, eleven billion, one hundred eleven million, two hundred twenty-one thousand, one hundred twenty-two".