2231210213 has 4 divisors (see below), whose sum is σ = 2303184768. Its totient is φ = 2159235660.

The previous prime is 2231210183. The next prime is 2231210227. The reversal of 2231210213 is 3120121322.

2231210213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3120121322 = 2 ⋅1560060661.

It is a cyclic number.

It is not a de Polignac number, because 2231210213 - 2²⁸ = 1962774757 is a prime.

It is a super-3 number, since 3×2231210213³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2231210191 and 2231210200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231212213) 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, 35987231 + ... + 35987292.

It is an arithmetic number, because the mean of its divisors is an integer number (575796192).

Almost surely, 2^2231210213 is an apocalyptic number.

It is an amenable number.

2231210213 is a deficient number, since it is larger than the sum of its proper divisors (71974555).

2231210213 is an equidigital number, since it uses as much as digits as its factorization.

2231210213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71974554.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2231210213 is about 47235.6879170824. The cubic root of 2231210213 is about 1306.7128534784.

Adding to 2231210213 its reverse (3120121322), we get a palindrome (5351331535).

The spelling of 2231210213 in words is "two billion, two hundred thirty-one million, two hundred ten thousand, two hundred thirteen".