2211204123 has 8 divisors (see below), whose sum is σ = 3275858000. Its totient is φ = 1474136064.

The previous prime is 2211204119. The next prime is 2211204133. The reversal of 2211204123 is 3214021122.

It is a happy number.

It is not a de Polignac number, because 2211204123 - 2² = 2211204119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2211204096 and 2211204105.

It is not an unprimeable number, because it can be changed into a prime (2211204133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40948198 + ... + 40948251.

It is an arithmetic number, because the mean of its divisors is an integer number (409482250).

Almost surely, 2^2211204123 is an apocalyptic number.

2211204123 is a deficient number, since it is larger than the sum of its proper divisors (1064653877).

2211204123 is an equidigital number, since it uses as much as digits as its factorization.

2211204123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81896458 (or 81896452 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 2211204123 is about 47023.4422708504. The cubic root of 2211204123 is about 1302.7955860898.

Adding to 2211204123 its reverse (3214021122), we get a palindrome (5425225245).

The spelling of 2211204123 in words is "two billion, two hundred eleven million, two hundred four thousand, one hundred twenty-three".