2205123212 has 6 divisors (see below), whose sum is σ = 3858965628. Its totient is φ = 1102561604.

The previous prime is 2205123187. The next prime is 2205123233. The reversal of 2205123212 is 2123215022.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275640398 + ... + 275640405.

It is an arithmetic number, because the mean of its divisors is an integer number (643160938).

Almost surely, 2^2205123212 is an apocalyptic number.

It is an amenable number.

2205123212 is a deficient number, since it is larger than the sum of its proper divisors (1653842416).

2205123212 is a wasteful number, since it uses less digits than its factorization.

2205123212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551280807 (or 551280805 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 2205123212 is about 46958.7394634907. The cubic root of 2205123212 is about 1301.6002408080.

Adding to 2205123212 its reverse (2123215022), we get a palindrome (4328338234).

The spelling of 2205123212 in words is "two billion, two hundred five million, one hundred twenty-three thousand, two hundred twelve".