2223212431 has 4 divisors (see below), whose sum is σ = 2425322664. Its totient is φ = 2021102200.

The previous prime is 2223212393. The next prime is 2223212479. The reversal of 2223212431 is 1342123222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2223212431 - 2¹⁷ = 2223081359 is a prime.

It is a super-2 number, since 2×2223212431² = 9885347026705859522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2223212731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101055100 + ... + 101055121.

It is an arithmetic number, because the mean of its divisors is an integer number (606330666).

Almost surely, 2^2223212431 is an apocalyptic number.

2223212431 is a deficient number, since it is larger than the sum of its proper divisors (202110233).

2223212431 is a wasteful number, since it uses less digits than its factorization.

2223212431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202110232.

The product of its digits is 1152, while the sum is 22.

The square root of 2223212431 is about 47150.9536594966. The cubic root of 2223212431 is about 1305.1496784225.

Adding to 2223212431 its reverse (1342123222), we get a palindrome (3565335653).

The spelling of 2223212431 in words is "two billion, two hundred twenty-three million, two hundred twelve thousand, four hundred thirty-one".