421111424121 has 8 divisors (see below), whose sum is σ = 562634841024. Its totient is φ = 280164478320.

The previous prime is 421111424113. The next prime is 421111424177. The reversal of 421111424121 is 121424111124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 421111424121 - 2³ = 421111424113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 421111424091 and 421111424100.

It is not an unprimeable number, because it can be changed into a prime (421111464121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144116070 + ... + 144118991.

It is an arithmetic number, because the mean of its divisors is an integer number (70329355128).

Almost surely, 2^421111424121 is an apocalyptic number.

It is an amenable number.

421111424121 is a deficient number, since it is larger than the sum of its proper divisors (141523416903).

421111424121 is a wasteful number, since it uses less digits than its factorization.

421111424121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288235551.

The product of its digits is 512, while the sum is 24.

Adding to 421111424121 its reverse (121424111124), we get a palindrome (542535535245).

The spelling of 421111424121 in words is "four hundred twenty-one billion, one hundred eleven million, four hundred twenty-four thousand, one hundred twenty-one".