1223211031123 has 8 divisors (see below), whose sum is σ = 1229206829600. Its totient is φ = 1217220922368.

The previous prime is 1223211031117. The next prime is 1223211031127. The reversal of 1223211031123 is 3211301123221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1223211031123 - 2⁹ = 1223211030611 is a prime.

It is a super-2 number, since 2×1223211031123² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1223211031094 and 1223211031103.

It is not an unprimeable number, because it can be changed into a prime (1223211031127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 991086 + ... + 1851667.

It is an arithmetic number, because the mean of its divisors is an integer number (153650853700).

Almost surely, 2^{1223211031123} is an apocalyptic number.

1223211031123 is a deficient number, since it is larger than the sum of its proper divisors (5995798477).

1223211031123 is a wasteful number, since it uses less digits than its factorization.

1223211031123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2844861.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1223211031123 its reverse (3211301123221), we get a palindrome (4434512154344).

The spelling of 1223211031123 in words is "one trillion, two hundred twenty-three billion, two hundred eleven million, thirty-one thousand, one hundred twenty-three".