1121222233111 has 16 divisors (see below), whose sum is σ = 1134499636800. Its totient is φ = 1108006276608.

The previous prime is 1121222233097. The next prime is 1121222233121. The reversal of 1121222233111 is 1113322221211.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1121222233111 - 2³⁷ = 983783279639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121222233121) 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, 139468830 + ... + 139476868.

It is an arithmetic number, because the mean of its divisors is an integer number (70906227300).

Almost surely, 2^{1121222233111} is an apocalyptic number.

1121222233111 is a deficient number, since it is larger than the sum of its proper divisors (13277403689).

1121222233111 is a wasteful number, since it uses less digits than its factorization.

1121222233111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11658.

The product of its digits is 288, while the sum is 22.

Adding to 1121222233111 its reverse (1113322221211), we get a palindrome (2234544454322).

The spelling of 1121222233111 in words is "one trillion, one hundred twenty-one billion, two hundred twenty-two million, two hundred thirty-three thousand, one hundred eleven".