12310022021 has 8 divisors (see below), whose sum is σ = 13454798304. Its totient is φ = 11169526320.

The previous prime is 12310022017. The next prime is 12310022033. The reversal of 12310022021 is 12022001321.

It is a happy number.

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 12310022021 - 2² = 12310022017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12310021987 and 12310022005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12310022071) 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, 1064126 + ... + 1075631.

It is an arithmetic number, because the mean of its divisors is an integer number (1681849788).

Almost surely, 2^12310022021 is an apocalyptic number.

12310022021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12310022021 is a deficient number, since it is larger than the sum of its proper divisors (1144776283).

12310022021 is a wasteful number, since it uses less digits than its factorization.

12310022021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2140291.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 12310022021 its reverse (12022001321), we get a palindrome (24332023342).

The spelling of 12310022021 in words is "twelve billion, three hundred ten million, twenty-two thousand, twenty-one".