421121404121124 has 48 divisors (see below), whose sum is σ = 1123527984656000. Its totient is φ = 120262803998976.

The previous prime is 421121404121107. The next prime is 421121404121129.

It is a happy number.

421121404121124 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 421121404121091 and 421121404121100.

It is not an unprimeable number, because it can be changed into a prime (421121404121129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1199764699 + ... + 1200115650.

Almost surely, 2^{421121404121124} is an apocalyptic number.

It is an amenable number.

421121404121124 is an abundant number, since it is smaller than the sum of its proper divisors (702406580534876).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

421121404121124 is a wasteful number, since it uses less digits than its factorization.

421121404121124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2399882452 (or 2399882450 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 30.

It can be divided in two parts, 42112140 and 4121124, that added together give a palindrome (46233264).

The spelling of 421121404121124 in words is "four hundred twenty-one trillion, one hundred twenty-one billion, four hundred four million, one hundred twenty-one thousand, one hundred twenty-four".