1122221313111 has 16 divisors (see below), whose sum is σ = 1550191534560. Its totient is φ = 721275985920.

The previous prime is 1122221313091. The next prime is 1122221313223. The reversal of 1122221313111 is 1113131222211.

It is not a de Polignac number, because 1122221313111 - 2⁷ = 1122221312983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122221311111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9524730 + ... + 9641831.

It is an arithmetic number, because the mean of its divisors is an integer number (96886970910).

Almost surely, 2^{1122221313111} is an apocalyptic number.

1122221313111 is a deficient number, since it is larger than the sum of its proper divisors (427970221449).

1122221313111 is a wasteful number, since it uses less digits than its factorization.

1122221313111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19167266.

The product of its digits is 144, while the sum is 21.

Adding to 1122221313111 its reverse (1113131222211), we get a palindrome (2235352535322).

The spelling of 1122221313111 in words is "one trillion, one hundred twenty-two billion, two hundred twenty-one million, three hundred thirteen thousand, one hundred eleven".