1111012221201 has 16 divisors (see below), whose sum is σ = 1483301083200. Its totient is φ = 739699490880.

The previous prime is 1111012221181. The next prime is 1111012221223. The reversal of 1111012221201 is 1021222101111.

It is a happy number.

It is not a de Polignac number, because 1111012221201 - 2¹⁴ = 1111012204817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1111012221271) 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, 11523471 + ... + 11619483.

It is an arithmetic number, because the mean of its divisors is an integer number (92706317700).

Almost surely, 2^{1111012221201} is an apocalyptic number.

It is an amenable number.

1111012221201 is a deficient number, since it is larger than the sum of its proper divisors (372288861999).

1111012221201 is an equidigital number, since it uses as much as digits as its factorization.

1111012221201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101056.

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

Adding to 1111012221201 its reverse (1021222101111), we get a palindrome (2132234322312).

The spelling of 1111012221201 in words is "one trillion, one hundred eleven billion, twelve million, two hundred twenty-one thousand, two hundred one".