4213221331 has 6 divisors (see below), whose sum is σ = 4631061596. Its totient is φ = 3830201100.

The previous prime is 4213221319. The next prime is 4213221347. The reversal of 4213221331 is 1331223124.

It is not a de Polignac number, because 4213221331 - 2¹⁵ = 4213188563 is a prime.

It is a super-2 number, since 2×4213221331² = 35502467967986823122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4213221361) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17409885 + ... + 17410126.

Almost surely, 2^4213221331 is an apocalyptic number.

4213221331 is a deficient number, since it is larger than the sum of its proper divisors (417840265).

4213221331 is a wasteful number, since it uses less digits than its factorization.

4213221331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34820033 (or 34820022 counting only the distinct ones).

The product of its digits is 864, while the sum is 22.

The square root of 4213221331 is about 64909.3316172644. The cubic root of 4213221331 is about 1615.1198626639.

Adding to 4213221331 its reverse (1331223124), we get a palindrome (5544444455).

The spelling of 4213221331 in words is "four billion, two hundred thirteen million, two hundred twenty-one thousand, three hundred thirty-one".