421223343322124 has 72 divisors (see below), whose sum is σ = 870326691906672. Its totient is φ = 177822143009280.

The previous prime is 421223343322123. The next prime is 421223343322157.

421223343322124 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (421223343322123) 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, 305563664 + ... + 306939080.

It is an arithmetic number, because the mean of its divisors is an integer number (12087870720926).

Almost surely, 2^{421223343322124} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421223343322124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (435163345953336).

421223343322124 is an abundant number, since it is smaller than the sum of its proper divisors (449103348584548).

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

421223343322124 is a wasteful number, since it uses less digits than its factorization.

421223343322124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1398823 (or 1398814 counting only the distinct ones).

The product of its digits is 331776, while the sum is 38.

The spelling of 421223343322124 in words is "four hundred twenty-one trillion, two hundred twenty-three billion, three hundred forty-three million, three hundred twenty-two thousand, one hundred twenty-four".