11201121212 has 6 divisors (see below), whose sum is σ = 19601962128. Its totient is φ = 5600560604.

The previous prime is 11201121203. The next prime is 11201121251. The reversal of 11201121212 is 21212110211.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1400140148 + ... + 1400140155.

It is an arithmetic number, because the mean of its divisors is an integer number (3266993688).

Almost surely, 2^11201121212 is an apocalyptic number.

It is an amenable number.

11201121212 is a deficient number, since it is larger than the sum of its proper divisors (8400840916).

11201121212 is a wasteful number, since it uses less digits than its factorization.

11201121212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2800280307 (or 2800280305 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 11201121212 its reverse (21212110211), we get a palindrome (32413231423).

The spelling of 11201121212 in words is "eleven billion, two hundred one million, one hundred twenty-one thousand, two hundred twelve".