4145422020220 has 72 divisors (see below), whose sum is σ = 9429237802656. Its totient is φ = 1530179718912.

The previous prime is 4145422020209. The next prime is 4145422020221. The reversal of 4145422020220 is 220202245414.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4145422020221) 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, 11767969 + ... + 12115111.

It is an arithmetic number, because the mean of its divisors is an integer number (130961636148).

Almost surely, 2^{4145422020220} 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 4145422020220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4714618901328).

4145422020220 is an abundant number, since it is smaller than the sum of its proper divisors (5283815782436).

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

4145422020220 is a wasteful number, since it uses less digits than its factorization.

4145422020220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350711 (or 350696 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 28.

Adding to 4145422020220 its reverse (220202245414), we get a palindrome (4365624265634).

The spelling of 4145422020220 in words is "four trillion, one hundred forty-five billion, four hundred twenty-two million, twenty thousand, two hundred twenty".