421042120022404 has 12 divisors (see below), whose sum is σ = 762231424178700. Its totient is φ = 203261713114208.

The previous prime is 421042120022371. The next prime is 421042120022441. The reversal of 421042120022404 is 404220021240124.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 147482759485504 + 273559360536900 = 12144248^2 + 16539630^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1814836724119 + ... + 1814836724350.

It is an arithmetic number, because the mean of its divisors is an integer number (63519285348225).

Almost surely, 2^{421042120022404} is an apocalyptic number.

It is an amenable number.

421042120022404 is a deficient number, since it is larger than the sum of its proper divisors (341189304156296).

421042120022404 is a wasteful number, since it uses less digits than its factorization.

421042120022404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3629673448502 (or 3629673448500 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 28.

Adding to 421042120022404 its reverse (404220021240124), we get a palindrome (825262141262528).

The spelling of 421042120022404 in words is "four hundred twenty-one trillion, forty-two billion, one hundred twenty million, twenty-two thousand, four hundred four".