1021231012223 has 8 divisors (see below), whose sum is σ = 1042976722368. Its totient is φ = 999486026784.

The previous prime is 1021231012199. The next prime is 1021231012261. The reversal of 1021231012223 is 3222101321201.

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 1021231012223 - 2²⁴ = 1021214235007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1021231012195 and 1021231012204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021231012273) 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, 3421865 + ... + 3708317.

It is an arithmetic number, because the mean of its divisors is an integer number (130372090296).

Almost surely, 2^{1021231012223} is an apocalyptic number.

1021231012223 is a deficient number, since it is larger than the sum of its proper divisors (21745710145).

1021231012223 is an equidigital number, since it uses as much as digits as its factorization.

1021231012223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362353.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1021231012223 its reverse (3222101321201), we get a palindrome (4243332333424).

The spelling of 1021231012223 in words is "one trillion, twenty-one billion, two hundred thirty-one million, twelve thousand, two hundred twenty-three".