11101221200012 has 24 divisors (see below), whose sum is σ = 19879114261776. Its totient is φ = 5421476648448.

The previous prime is 11101221200011. The next prime is 11101221200029. The reversal of 11101221200012 is 21000212210111.

It is a super-2 number, since 2×11101221200012² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11101221200012.

It is not an unprimeable number, because it can be changed into a prime (11101221200011) 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, 24313568 + ... + 24765944.

It is an arithmetic number, because the mean of its divisors is an integer number (828296427574).

Almost surely, 2^{11101221200012} is an apocalyptic number.

It is an amenable number.

11101221200012 is a deficient number, since it is larger than the sum of its proper divisors (8777893061764).

11101221200012 is a wasteful number, since it uses less digits than its factorization.

11101221200012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595097 (or 595095 counting only the distinct ones).

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

Adding to 11101221200012 its reverse (21000212210111), we get a palindrome (32101433410123).

The spelling of 11101221200012 in words is "eleven trillion, one hundred one billion, two hundred twenty-one million, two hundred thousand, twelve".