12232202821 has 2 divisors, whose sum is σ = 12232202822. Its totient is φ = 12232202820.

The previous prime is 12232202791. The next prime is 12232202833. The reversal of 12232202821 is 12820223221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12223734721 + 8468100 = 110561^2 + 2910^2 .

It is a cyclic number.

It is not a de Polignac number, because 12232202821 - 2¹³ = 12232194629 is a prime.

It is a super-3 number, since 3×12232202821³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12232262821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6116101410 + 6116101411.

It is an arithmetic number, because the mean of its divisors is an integer number (6116101411).

Almost surely, 2^12232202821 is an apocalyptic number.

It is an amenable number.

12232202821 is a deficient number, since it is larger than the sum of its proper divisors (1).

12232202821 is an equidigital number, since it uses as much as digits as its factorization.

12232202821 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1536, while the sum is 25.

The spelling of 12232202821 in words is "twelve billion, two hundred thirty-two million, two hundred two thousand, eight hundred twenty-one".