421214022 has 24 divisors (see below), whose sum is σ = 913119480. Its totient is φ = 140329440.

The previous prime is 421214011. The next prime is 421214023. The reversal of 421214022 is 220412124.

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 = 421213986 and 421214004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421214023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35929 + ... + 46187.

It is an arithmetic number, because the mean of its divisors is an integer number (38046645).

Almost surely, 2^421214022 is an apocalyptic number.

421214022 is an abundant number, since it is smaller than the sum of its proper divisors (491905458).

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

421214022 is a wasteful number, since it uses less digits than its factorization.

421214022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12548 (or 12545 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 421214022 is about 20523.4992630399. The cubic root of 421214022 is about 749.6081045930.

Adding to 421214022 its reverse (220412124), we get a palindrome (641626146).

The spelling of 421214022 in words is "four hundred twenty-one million, two hundred fourteen thousand, twenty-two".