1122220122111 has 24 divisors (see below), whose sum is σ = 1768383467136. Its totient is φ = 680119327440.

The previous prime is 1122220122109. The next prime is 1122220122143. The reversal of 1122220122111 is 1112210222211.

1122220122111 is a `hidden beast` number, since 11 + 222 + 201 + 221 + 11 = 666.

It is not a de Polignac number, because 1122220122111 - 2¹ = 1122220122109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122220122151) 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, 6650956 + ... + 6817598.

It is an arithmetic number, because the mean of its divisors is an integer number (73682644464).

Almost surely, 2^{1122220122111} is an apocalyptic number.

1122220122111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1122220122111 is a deficient number, since it is larger than the sum of its proper divisors (646163345025).

1122220122111 is a wasteful number, since it uses less digits than its factorization.

1122220122111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234683 (or 234680 counting only the distinct ones).

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

Adding to 1122220122111 its reverse (1112210222211), we get a palindrome (2234430344322).

The spelling of 1122220122111 in words is "one trillion, one hundred twenty-two billion, two hundred twenty million, one hundred twenty-two thousand, one hundred eleven".