421155222 has 8 divisors (see below), whose sum is σ = 842310456. Its totient is φ = 140385072.

The previous prime is 421155221. The next prime is 421155247. The reversal of 421155222 is 222551124.

It is a sphenic number, since it is the product of 3 distinct primes.

421155222 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 421155192 and 421155201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421155221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35096263 + ... + 35096274.

It is an arithmetic number, because the mean of its divisors is an integer number (105288807).

Almost surely, 2^421155222 is an apocalyptic number.

421155222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

421155222 is a wasteful number, since it uses less digits than its factorization.

421155222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70192542.

The product of its digits is 1600, while the sum is 24.

The square root of 421155222 is about 20522.0667087893. The cubic root of 421155222 is about 749.5732220824.

The spelling of 421155222 in words is "four hundred twenty-one million, one hundred fifty-five thousand, two hundred twenty-two".