422521413020 has 108 divisors (see below), whose sum is σ = 1040389604856. Its totient is φ = 143718442560.

The previous prime is 422521413011. The next prime is 422521413029. The reversal of 422521413020 is 20314125224.

It is an interprime number because it is at equal distance from previous prime (422521413011) and next prime (422521413029).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422521413029) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 15793055 + ... + 15819785.

It is an arithmetic number, because the mean of its divisors is an integer number (9633237082).

Almost surely, 2^422521413020 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 422521413020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (520194802428).

422521413020 is an abundant number, since it is smaller than the sum of its proper divisors (617868191836).

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

422521413020 is a wasteful number, since it uses less digits than its factorization.

422521413020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27008 (or 26872 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 422521413020 its reverse (20314125224), we get a palindrome (442835538244).

The spelling of 422521413020 in words is "four hundred twenty-two billion, five hundred twenty-one million, four hundred thirteen thousand, twenty".