4351223404220 has 96 divisors (see below), whose sum is σ = 11396770108416. Its totient is φ = 1355692608000.

The previous prime is 4351223404217. The next prime is 4351223404267. The reversal of 4351223404220 is 224043221534.

It is a super-2 number, since 2×4351223404220² (a number of 26 digits) contains 22 as substring.

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, 3374744 + ... + 4482336.

It is an arithmetic number, because the mean of its divisors is an integer number (118716355296).

Almost surely, 2^{4351223404220} 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 4351223404220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5698385054208).

4351223404220 is an abundant number, since it is smaller than the sum of its proper divisors (7045546704196).

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

4351223404220 is a wasteful number, since it uses less digits than its factorization.

4351223404220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1110171 (or 1110169 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 32.

Adding to 4351223404220 its reverse (224043221534), we get a palindrome (4575266625754).

The spelling of 4351223404220 in words is "four trillion, three hundred fifty-one billion, two hundred twenty-three million, four hundred four thousand, two hundred twenty".