421322022 has 48 divisors (see below), whose sum is σ = 1006164432. Its totient is φ = 126351360.

The previous prime is 421322021. The next prime is 421322029. The reversal of 421322022 is 220223124.

421322022 is a `hidden beast` number, since 421 + 3 + 220 + 22 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 421321986 and 421322004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421322021) 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, 8238 + ... + 30174.

It is an arithmetic number, because the mean of its divisors is an integer number (20961759).

Almost surely, 2^421322022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421322022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (503082216).

421322022 is an abundant number, since it is smaller than the sum of its proper divisors (584842410).

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

421322022 is a wasteful number, since it uses less digits than its factorization.

421322022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22053 (or 22050 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 421322022 is about 20526.1302246673. The cubic root of 421322022 is about 749.6721660541.

Adding to 421322022 its reverse (220223124), we get a palindrome (641545146).

The spelling of 421322022 in words is "four hundred twenty-one million, three hundred twenty-two thousand, twenty-two".