421214123220 has 192 divisors, whose sum is σ = 1359614592000. Its totient is φ = 96361021440.

The previous prime is 421214123207. The next prime is 421214123243. The reversal of 421214123220 is 22321412124.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3157431 + ... + 3288129.

It is an arithmetic number, because the mean of its divisors is an integer number (7081326000).

Almost surely, 2^421214123220 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 421214123220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (679807296000).

421214123220 is an abundant number, since it is smaller than the sum of its proper divisors (938400468780).

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

421214123220 is a wasteful number, since it uses less digits than its factorization.

421214123220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130998 (or 130996 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 421214123220 its reverse (22321412124), we get a palindrome (443535535344).

The spelling of 421214123220 in words is "four hundred twenty-one billion, two hundred fourteen million, one hundred twenty-three thousand, two hundred twenty".