1121212322223 has 48 divisors (see below), whose sum is σ = 1744954260480. Its totient is φ = 638511237504.

The previous prime is 1121212322177. The next prime is 1121212322233. The reversal of 1121212322223 is 3222232121211.

It is not a de Polignac number, because 1121212322223 - 2¹⁰ = 1121212321199 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1121212322193 and 1121212322202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121212322233) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 55404915 + ... + 55425147.

It is an arithmetic number, because the mean of its divisors is an integer number (36353213760).

Almost surely, 2^{1121212322223} is an apocalyptic number.

1121212322223 is a deficient number, since it is larger than the sum of its proper divisors (623741938257).

1121212322223 is a wasteful number, since it uses less digits than its factorization.

1121212322223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21516 (or 21509 counting only the distinct ones).

The product of its digits is 1152, while the sum is 24.

Adding to 1121212322223 its reverse (3222232121211), we get a palindrome (4343444443434).

The spelling of 1121212322223 in words is "one trillion, one hundred twenty-one billion, two hundred twelve million, three hundred twenty-two thousand, two hundred twenty-three".