2031222213 has 24 divisors (see below), whose sum is σ = 2953766816. Its totient is φ = 1345053600.

The previous prime is 2031222187. The next prime is 2031222257. The reversal of 2031222213 is 3122221302.

It is not a de Polignac number, because 2031222213 - 2¹³ = 2031214021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2031222283) 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, 913443 + ... + 915663.

Almost surely, 2^2031222213 is an apocalyptic number.

It is an amenable number.

2031222213 is a deficient number, since it is larger than the sum of its proper divisors (922544603).

2031222213 is a wasteful number, since it uses less digits than its factorization.

2031222213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2865 (or 2862 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2031222213 is about 45069.0826731585. The cubic root of 2031222213 is about 1266.4434798442.

Adding to 2031222213 its reverse (3122221302), we get a palindrome (5153443515).

The spelling of 2031222213 in words is "two billion, thirty-one million, two hundred twenty-two thousand, two hundred thirteen".