11001220222012 has 24 divisors (see below), whose sum is σ = 19568697592640. Its totient is φ = 5410172554560.

The previous prime is 11001220221973. The next prime is 11001220222067. The reversal of 11001220222012 is 21022202210011.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3967378 + ... + 6143494.

Almost surely, 2^{11001220222012} is an apocalyptic number.

It is an amenable number.

11001220222012 is a deficient number, since it is larger than the sum of its proper divisors (8567477370628).

11001220222012 is a wasteful number, since it uses less digits than its factorization.

11001220222012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2196901 (or 2196899 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 11001220222012 its reverse (21022202210011), we get a palindrome (32023422432023).

The spelling of 11001220222012 in words is "eleven trillion, one billion, two hundred twenty million, two hundred twenty-two thousand, twelve".