2466431221 has 12 divisors (see below), whose sum is σ = 2525483692. Its totient is φ = 2408649984.

The previous prime is 2466431203. The next prime is 2466431251. The reversal of 2466431221 is 1221346642.

It can be written as a sum of positive squares in 2 ways, for example, as 210656196 + 2255775025 = 14514^2 + 47495^2 .

It is not a de Polignac number, because 2466431221 - 2¹⁵ = 2466398453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2466431251) 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 11 ways as a sum of consecutive naturals, for example, 544261 + ... + 548773.

Almost surely, 2^2466431221 is an apocalyptic number.

It is an amenable number.

2466431221 is a deficient number, since it is larger than the sum of its proper divisors (59052471).

2466431221 is an equidigital number, since it uses as much as digits as its factorization.

2466431221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4788 (or 4729 counting only the distinct ones).

The product of its digits is 13824, while the sum is 31.

The square root of 2466431221 is about 49663.1777175001. The cubic root of 2466431221 is about 1351.1067688429.

Adding to 2466431221 its reverse (1221346642), we get a palindrome (3687777863).

It can be divided in two parts, 246643 and 1221, that multiplied together give a palindrome (301151103).

The spelling of 2466431221 in words is "two billion, four hundred sixty-six million, four hundred thirty-one thousand, two hundred twenty-one".