2212303231 has 4 divisors (see below), whose sum is σ = 2308490352. Its totient is φ = 2116116112.

The previous prime is 2212303213. The next prime is 2212303243. The reversal of 2212303231 is 1323032122.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1323032122 = 2 ⋅661516061.

It is a cyclic number.

It is not a de Polignac number, because 2212303231 - 2⁷ = 2212303103 is a prime.

It is a super-2 number, since 2×2212303231² = 9788571171786078722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2212303199 and 2212303208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212333231) 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, 48093526 + ... + 48093571.

It is an arithmetic number, because the mean of its divisors is an integer number (577122588).

Almost surely, 2^2212303231 is an apocalyptic number.

2212303231 is a deficient number, since it is larger than the sum of its proper divisors (96187121).

2212303231 is an equidigital number, since it uses as much as digits as its factorization.

2212303231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96187120.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 2212303231 is about 47035.1276281887. The cubic root of 2212303231 is about 1303.0114075437.

Adding to 2212303231 its reverse (1323032122), we get a palindrome (3535335353).

The spelling of 2212303231 in words is "two billion, two hundred twelve million, three hundred three thousand, two hundred thirty-one".