421121020434201 has 48 divisors (see below), whose sum is σ = 658998750009600. Its totient is φ = 258313025487456.

The previous prime is 421121020434193. The next prime is 421121020434217. The reversal of 421121020434201 is 102434020121124.

421121020434201 is a `hidden beast` number, since 4 + 2 + 1 + 1 + 2 + 1 + 0 + 20 + 434 + 201 = 666.

It is not a de Polignac number, because 421121020434201 - 2³ = 421121020434193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (421121020434241) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 250612075 + ... + 252286848.

It is an arithmetic number, because the mean of its divisors is an integer number (13729140625200).

Almost surely, 2^{421121020434201} is an apocalyptic number.

It is an amenable number.

421121020434201 is a deficient number, since it is larger than the sum of its proper divisors (237877729575399).

421121020434201 is a wasteful number, since it uses less digits than its factorization.

421121020434201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502899090 (or 502899087 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 421121020434201 its reverse (102434020121124), we get a palindrome (523555040555325).

The spelling of 421121020434201 in words is "four hundred twenty-one trillion, one hundred twenty-one billion, twenty million, four hundred thirty-four thousand, two hundred one".