11223201212 has 6 divisors (see below), whose sum is σ = 19640602128. Its totient is φ = 5611600604.

The previous prime is 11223201211. The next prime is 11223201221. The reversal of 11223201212 is 21210232211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11223201211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1402900148 + ... + 1402900155.

It is an arithmetic number, because the mean of its divisors is an integer number (3273433688).

Almost surely, 2^11223201212 is an apocalyptic number.

It is an amenable number.

11223201212 is a deficient number, since it is larger than the sum of its proper divisors (8417400916).

11223201212 is a wasteful number, since it uses less digits than its factorization.

11223201212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2805800307 (or 2805800305 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 11223201212 its reverse (21210232211), we get a palindrome (32433433423).

The spelling of 11223201212 in words is "eleven billion, two hundred twenty-three million, two hundred one thousand, two hundred twelve".