1111121222233 has 4 divisors (see below), whose sum is σ = 1212132242448. Its totient is φ = 1010110202020.

The previous prime is 1111121222131. The next prime is 1111121222261. The reversal of 1111121222233 is 3322221211111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1111121222233 - 2³⁷ = 973682268761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1111121222293) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50505510091 + ... + 50505510112.

It is an arithmetic number, because the mean of its divisors is an integer number (303033060612).

Almost surely, 2^{1111121222233} is an apocalyptic number.

It is an amenable number.

1111121222233 is a deficient number, since it is larger than the sum of its proper divisors (101011020215).

1111121222233 is a wasteful number, since it uses less digits than its factorization.

1111121222233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101011020214.

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

Adding to 1111121222233 its reverse (3322221211111), we get a palindrome (4433342433344).

The spelling of 1111121222233 in words is "one trillion, one hundred eleven billion, one hundred twenty-one million, two hundred twenty-two thousand, two hundred thirty-three".