11100221211201 has 16 divisors (see below), whose sum is σ = 14868429249024. Its totient is φ = 7366151971584.

The previous prime is 11100221211199. The next prime is 11100221211229. The reversal of 11100221211201 is 10211212200111.

It is a happy number.

It is not a de Polignac number, because 11100221211201 - 2¹ = 11100221211199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11100221211241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8335761 + ... + 9575246.

It is an arithmetic number, because the mean of its divisors is an integer number (929276828064).

Almost surely, 2^{11100221211201} is an apocalyptic number.

It is an amenable number.

11100221211201 is a deficient number, since it is larger than the sum of its proper divisors (3768208037823).

11100221211201 is a wasteful number, since it uses less digits than its factorization.

11100221211201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17911960.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11100221211201 its reverse (10211212200111), we get a palindrome (21311433411312).

The spelling of 11100221211201 in words is "eleven trillion, one hundred billion, two hundred twenty-one million, two hundred eleven thousand, two hundred one".