421024101 has 24 divisors (see below), whose sum is σ = 576475200. Its totient is φ = 273297024.

The previous prime is 421024081. The next prime is 421024129. The reversal of 421024101 is 101420124.

It is not a de Polignac number, because 421024101 - 2⁷ = 421023973 is a prime.

It is a super-2 number, since 2×421024101² = 354522587245716402, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421024151) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2115600 + ... + 2115798.

It is an arithmetic number, because the mean of its divisors is an integer number (24019800).

Almost surely, 2^421024101 is an apocalyptic number.

It is an amenable number.

421024101 is a deficient number, since it is larger than the sum of its proper divisors (155451099).

421024101 is a wasteful number, since it uses less digits than its factorization.

421024101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473 (or 394 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 421024101 is about 20518.8718257121. The cubic root of 421024101 is about 749.4954241693.

Adding to 421024101 its reverse (101420124), we get a palindrome (522444225).

The spelling of 421024101 in words is "four hundred twenty-one million, twenty-four thousand, one hundred one".