2212321123 has 4 divisors (see below), whose sum is σ = 2214572688. Its totient is φ = 2210069560.

The previous prime is 2212321109. The next prime is 2212321151. The reversal of 2212321123 is 3211232122.

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 2212321123 - 2¹³ = 2212312931 is a prime.

It is a super-2 number, since 2×2212321123² = 9788729502543962258, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2212321123.

It is not an unprimeable number, because it can be changed into a prime (2212321523) 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, 1124308 + ... + 1126273.

It is an arithmetic number, because the mean of its divisors is an integer number (553643172).

Almost surely, 2^2212321123 is an apocalyptic number.

2212321123 is a deficient number, since it is larger than the sum of its proper divisors (2251565).

2212321123 is an equidigital number, since it uses as much as digits as its factorization.

2212321123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2251564.

The product of its digits is 288, while the sum is 19.

The square root of 2212321123 is about 47035.3178260762. The cubic root of 2212321123 is about 1303.0149202354.

Adding to 2212321123 its reverse (3211232122), we get a palindrome (5423553245).

The spelling of 2212321123 in words is "two billion, two hundred twelve million, three hundred twenty-one thousand, one hundred twenty-three".