1122220011111 has 32 divisors (see below), whose sum is σ = 1535027493888. Its totient is φ = 728928850560.

The previous prime is 1122220011097. The next prime is 1122220011139. The reversal of 1122220011111 is 1111100222211.

It is a happy number.

It is not a de Polignac number, because 1122220011111 - 2⁶ = 1122220011047 is a prime.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122220011181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38861100 + ... + 38889966.

It is an arithmetic number, because the mean of its divisors is an integer number (47969609184).

Almost surely, 2^{1122220011111} is an apocalyptic number.

1122220011111 is a deficient number, since it is larger than the sum of its proper divisors (412807482777).

1122220011111 is a wasteful number, since it uses less digits than its factorization.

1122220011111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30151.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 1122220011111 its reverse (1111100222211), we get a palindrome (2233320233322).

The spelling of 1122220011111 in words is "one trillion, one hundred twenty-two billion, two hundred twenty million, eleven thousand, one hundred eleven".