1404220453021 has 2 divisors, whose sum is σ = 1404220453022. Its totient is φ = 1404220453020.

The previous prime is 1404220453001. The next prime is 1404220453033. The reversal of 1404220453021 is 1203540224041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 960231447396 + 443989005625 = 979914^2 + 666325^2 .

It is a cyclic number.

It is not a de Polignac number, because 1404220453021 - 2⁷ = 1404220452893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1404220453001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 702110226510 + 702110226511.

It is an arithmetic number, because the mean of its divisors is an integer number (702110226511).

Almost surely, 2^{1404220453021} is an apocalyptic number.

It is an amenable number.

1404220453021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1404220453021 is an equidigital number, since it uses as much as digits as its factorization.

1404220453021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7680, while the sum is 28.

Adding to 1404220453021 its reverse (1203540224041), we get a palindrome (2607760677062).

The spelling of 1404220453021 in words is "one trillion, four hundred four billion, two hundred twenty million, four hundred fifty-three thousand, twenty-one".