1111210221201 has 16 divisors (see below), whose sum is σ = 1484246438400. Its totient is φ = 739490727168.

The previous prime is 1111210221169. The next prime is 1111210221211. The reversal of 1111210221201 is 1021220121111.

It is a happy number.

It is not a de Polignac number, because 1111210221201 - 2⁵ = 1111210221169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1111210221211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15787555 + ... + 15857783.

It is an arithmetic number, because the mean of its divisors is an integer number (92765402400).

Almost surely, 2^{1111210221201} is an apocalyptic number.

It is an amenable number.

1111210221201 is a deficient number, since it is larger than the sum of its proper divisors (373036217199).

1111210221201 is an equidigital number, since it uses as much as digits as its factorization.

1111210221201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79528.

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

Adding to 1111210221201 its reverse (1021220121111), we get a palindrome (2132430342312).

The spelling of 1111210221201 in words is "one trillion, one hundred eleven billion, two hundred ten million, two hundred twenty-one thousand, two hundred one".