111211322201 has 4 divisors (see below), whose sum is σ = 127098653952. Its totient is φ = 95323990452.

The previous prime is 111211322197. The next prime is 111211322203. The reversal of 111211322201 is 102223112111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 111211322201 - 2² = 111211322197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111211322201.

It is not an unprimeable number, because it can be changed into a prime (111211322203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7943665865 + ... + 7943665878.

It is an arithmetic number, because the mean of its divisors is an integer number (31774663488).

Almost surely, 2^111211322201 is an apocalyptic number.

It is an amenable number.

111211322201 is a deficient number, since it is larger than the sum of its proper divisors (15887331751).

111211322201 is an equidigital number, since it uses as much as digits as its factorization.

111211322201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15887331750.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 111211322201 its reverse (102223112111), we get a palindrome (213434434312).

The spelling of 111211322201 in words is "one hundred eleven billion, two hundred eleven million, three hundred twenty-two thousand, two hundred one".