12213020231 has 8 divisors (see below), whose sum is σ = 12383779824. Its totient is φ = 12042354240.

The previous prime is 12213020227. The next prime is 12213020233. The reversal of 12213020231 is 13202031221.

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 12213020231 - 2² = 12213020227 is a prime.

It is a super-2 number, since 2×12213020231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12213020233) 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, 263801 + ... + 306621.

It is an arithmetic number, because the mean of its divisors is an integer number (1547972478).

Almost surely, 2^12213020231 is an apocalyptic number.

12213020231 is a deficient number, since it is larger than the sum of its proper divisors (170759593).

12213020231 is an equidigital number, since it uses as much as digits as its factorization.

12213020231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46801.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 12213020231 its reverse (13202031221), we get a palindrome (25415051452).

The spelling of 12213020231 in words is "twelve billion, two hundred thirteen million, twenty thousand, two hundred thirty-one".