1121020211223 has 48 divisors (see below), whose sum is σ = 1782478444032. Its totient is φ = 673261200000.

The previous prime is 1121020211153. The next prime is 1121020211257. The reversal of 1121020211223 is 3221120201211.

1121020211223 is a `hidden beast` number, since 1 + 1 + 210 + 20 + 211 + 223 = 666.

It is not a de Polignac number, because 1121020211223 - 2²⁰ = 1121019162647 is a prime.

It is a super-3 number, since 3×1121020211223³ (a number of 37 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1121020211196 and 1121020211205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121020210223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7672098 + ... + 7816848.

It is an arithmetic number, because the mean of its divisors is an integer number (37134967584).

Almost surely, 2^{1121020211223} is an apocalyptic number.

1121020211223 is a deficient number, since it is larger than the sum of its proper divisors (661458232809).

1121020211223 is a wasteful number, since it uses less digits than its factorization.

1121020211223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145476 (or 145473 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 1121020211223 its reverse (3221120201211), we get a palindrome (4342140412434).

The spelling of 1121020211223 in words is "one trillion, one hundred twenty-one billion, twenty million, two hundred eleven thousand, two hundred twenty-three".