2211212323 has 16 divisors (see below), whose sum is σ = 2265912864. Its totient is φ = 2157281280.

The previous prime is 2211212309. The next prime is 2211212351. The reversal of 2211212323 is 3232121122.

It is a cyclic number.

It is not a de Polignac number, because 2211212323 - 2²¹ = 2209115171 is a prime.

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 2211212323.

It is not an unprimeable number, because it can be changed into a prime (2211212023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4838311 + ... + 4838767.

It is an arithmetic number, because the mean of its divisors is an integer number (141619554).

Almost surely, 2^2211212323 is an apocalyptic number.

2211212323 is a deficient number, since it is larger than the sum of its proper divisors (54700541).

2211212323 is a wasteful number, since it uses less digits than its factorization.

2211212323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1062.

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

The square root of 2211212323 is about 47023.5294613239. The cubic root of 2211212323 is about 1302.7971965111.

Adding to 2211212323 its reverse (3232121122), we get a palindrome (5443333445).

The spelling of 2211212323 in words is "two billion, two hundred eleven million, two hundred twelve thousand, three hundred twenty-three".