2124421451 has 2 divisors, whose sum is σ = 2124421452. Its totient is φ = 2124421450.

The previous prime is 2124421417. The next prime is 2124421463. The reversal of 2124421451 is 1541244212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2124421451 - 2³⁰ = 1050679627 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2124421451.

It is not a weakly prime, because it can be changed into another prime (2124429451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1062210725 + 1062210726.

It is an arithmetic number, because the mean of its divisors is an integer number (1062210726).

Almost surely, 2^2124421451 is an apocalyptic number.

2124421451 is a deficient number, since it is larger than the sum of its proper divisors (1).

2124421451 is an equidigital number, since it uses as much as digits as its factorization.

2124421451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2560, while the sum is 26.

The square root of 2124421451 is about 46091.4466143123. The cubic root of 2124421451 is about 1285.5241092571.

Adding to 2124421451 its reverse (1541244212), we get a palindrome (3665665663).

The spelling of 2124421451 in words is "two billion, one hundred twenty-four million, four hundred twenty-one thousand, four hundred fifty-one".