111001002201 has 6 divisors (see below), whose sum is σ = 160334780970. Its totient is φ = 74000668128.

The previous prime is 111001002193. The next prime is 111001002253. The reversal of 111001002201 is 102200100111.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 67036977225 + 43964024976 = 258915^2 + 209676^2 .

It is not a de Polignac number, because 111001002201 - 2³ = 111001002193 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 12333444689 = 111001002201 / (1 + 1 + 1 + 0 + 0 + 1 + 0 + 0 + 2 + 2 + 0 + 1).

It is not an unprimeable number, because it can be changed into a prime (111001002001) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6166722336 + ... + 6166722353.

It is an arithmetic number, because the mean of its divisors is an integer number (26722463495).

Almost surely, 2^111001002201 is an apocalyptic number.

It is an amenable number.

111001002201 is a deficient number, since it is larger than the sum of its proper divisors (49333778769).

111001002201 is a wasteful number, since it uses less digits than its factorization.

111001002201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12333444695 (or 12333444692 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 111001002201 its reverse (102200100111), we get a palindrome (213201102312).

The spelling of 111001002201 in words is "one hundred eleven billion, one million, two thousand, two hundred one".