421241121 has 32 divisors (see below), whose sum is σ = 714919680. Its totient is φ = 240133248.

The previous prime is 421241071. The next prime is 421241123. The reversal of 421241121 is 121142124.

421241121 is a `hidden beast` number, since 421 + 241 + 1 + 2 + 1 = 666.

It is not a de Polignac number, because 421241121 - 2¹⁵ = 421208353 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 421241094 and 421241103.

It is not an unprimeable number, because it can be changed into a prime (421241123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 83935 + ... + 88811.

It is an arithmetic number, because the mean of its divisors is an integer number (22341240).

Almost surely, 2^421241121 is an apocalyptic number.

It is an amenable number.

421241121 is a deficient number, since it is larger than the sum of its proper divisors (293678559).

421241121 is a wasteful number, since it uses less digits than its factorization.

421241121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5350 (or 5344 counting only the distinct ones).

The product of its digits is 128, while the sum is 18.

The square root of 421241121 is about 20524.1594468568. The cubic root of 421241121 is about 749.6241797103.

Adding to 421241121 its reverse (121142124), we get a palindrome (542383245).

The spelling of 421241121 in words is "four hundred twenty-one million, two hundred forty-one thousand, one hundred twenty-one".