4223421545112 has 192 divisors, whose sum is σ = 14323731552000. Its totient is φ = 1092159717120.

The previous prime is 4223421545053. The next prime is 4223421545137. The reversal of 4223421545112 is 2115451243224.

4223421545112 is a `hidden beast` number, since 4 + 223 + 421 + 5 + 4 + 5 + 1 + 1 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 419487 + ... + 2936462.

It is an arithmetic number, because the mean of its divisors is an integer number (74602768500).

Almost surely, 2^{4223421545112} is an apocalyptic number.

4223421545112 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4223421545112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7161865776000).

4223421545112 is an abundant number, since it is smaller than the sum of its proper divisors (10100310006888).

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

4223421545112 is a wasteful number, since it uses less digits than its factorization.

4223421545112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3356206 (or 3356199 counting only the distinct ones).

The product of its digits is 76800, while the sum is 36.

Adding to 4223421545112 its reverse (2115451243224), we get a palindrome (6338872788336).

The spelling of 4223421545112 in words is "four trillion, two hundred twenty-three billion, four hundred twenty-one million, five hundred forty-five thousand, one hundred twelve".