421202322 has 64 divisors (see below), whose sum is σ = 972777600. Its totient is φ = 134930880.

The previous prime is 421202321. The next prime is 421202333. The reversal of 421202322 is 223202124.

It is a super-2 number, since 2×421202322² = 354822792116383368, which contains 22 as substring.

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 = 421202295 and 421202304.

It is not an unprimeable number, because it can be changed into a prime (421202321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 433297 + ... + 434267.

It is an arithmetic number, because the mean of its divisors is an integer number (15199650).

Almost surely, 2^421202322 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421202322, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (486388800).

421202322 is an abundant number, since it is smaller than the sum of its proper divisors (551575278).

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

421202322 is a wasteful number, since it uses less digits than its factorization.

421202322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1288 (or 1282 counting only the distinct ones).

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

The square root of 421202322 is about 20523.2142219488. The cubic root of 421202322 is about 749.6011639440.

Adding to 421202322 its reverse (223202124), we get a palindrome (644404446).

The spelling of 421202322 in words is "four hundred twenty-one million, two hundred two thousand, three hundred twenty-two".