4221356531224 has 128 divisors (see below), whose sum is σ = 9995744424960. Its totient is φ = 1628464324608.

The previous prime is 4221356531213. The next prime is 4221356531237.

4221356531224 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 273626599 + ... + 273642025.

It is an arithmetic number, because the mean of its divisors is an integer number (78091753320).

Almost surely, 2^{4221356531224} 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 4221356531224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4997872212480).

4221356531224 is an abundant number, since it is smaller than the sum of its proper divisors (5774387893736).

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

4221356531224 is a wasteful number, since it uses less digits than its factorization.

4221356531224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27977 (or 27973 counting only the distinct ones).

The product of its digits is 345600, while the sum is 40.

The spelling of 4221356531224 in words is "four trillion, two hundred twenty-one billion, three hundred fifty-six million, five hundred thirty-one thousand, two hundred twenty-four".