12242020451 has 2 divisors, whose sum is σ = 12242020452. Its totient is φ = 12242020450.

The previous prime is 12242020409. The next prime is 12242020459. The reversal of 12242020451 is 15402024221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12242020451 - 2⁶ = 12242020387 is a prime.

It is not a weakly prime, because it can be changed into another prime (12242020459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6121010225 + 6121010226.

It is an arithmetic number, because the mean of its divisors is an integer number (6121010226).

Almost surely, 2^12242020451 is an apocalyptic number.

12242020451 is a deficient number, since it is larger than the sum of its proper divisors (1).

12242020451 is an equidigital number, since it uses as much as digits as its factorization.

12242020451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1280, while the sum is 23.

Adding to 12242020451 its reverse (15402024221), we get a palindrome (27644044672).

The spelling of 12242020451 in words is "twelve billion, two hundred forty-two million, twenty thousand, four hundred fifty-one".