2212323031 has 4 divisors (see below), whose sum is σ = 2240327200. Its totient is φ = 2184318864.

The previous prime is 2212323019. The next prime is 2212323037. The reversal of 2212323031 is 1303232122.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2212323031 is a prime.

It is a super-2 number, since 2×2212323031² = 9788746386986053922, 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 (2212323037) 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, 14001966 + ... + 14002123.

It is an arithmetic number, because the mean of its divisors is an integer number (560081800).

Almost surely, 2^2212323031 is an apocalyptic number.

2212323031 is a deficient number, since it is larger than the sum of its proper divisors (28004169).

2212323031 is an equidigital number, since it uses as much as digits as its factorization.

2212323031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28004168.

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

The square root of 2212323031 is about 47035.3381087029. The cubic root of 2212323031 is about 1303.0152948271.

Adding to 2212323031 its reverse (1303232122), we get a palindrome (3515555153).

Subtracting from 2212323031 its reverse (1303232122), we obtain a palindrome (909090909).

It can be divided in two parts, 22123 and 23031, that added together give a palindrome (45154).

The spelling of 2212323031 in words is "two billion, two hundred twelve million, three hundred twenty-three thousand, thirty-one".