420222213 has 24 divisors (see below), whose sum is σ = 645345792. Its totient is φ = 262904928.

The previous prime is 420222211. The next prime is 420222241. The reversal of 420222213 is 312222024.

420222213 is a `hidden beast` number, since 420 + 22 + 221 + 3 = 666.

It is not a de Polignac number, because 420222213 - 2¹ = 420222211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420222211) 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, 8181 + ... + 30122.

It is an arithmetic number, because the mean of its divisors is an integer number (26889408).

Almost surely, 2^420222213 is an apocalyptic number.

It is an amenable number.

420222213 is a deficient number, since it is larger than the sum of its proper divisors (225123579).

420222213 is a wasteful number, since it uses less digits than its factorization.

420222213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38385 (or 38382 counting only the distinct ones).

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

The square root of 420222213 is about 20499.3222570894. The cubic root of 420222213 is about 749.0192888331.

Adding to 420222213 its reverse (312222024), we get a palindrome (732444237).

The spelling of 420222213 in words is "four hundred twenty million, two hundred twenty-two thousand, two hundred thirteen".