1111002201 has 12 divisors (see below), whose sum is σ = 1625095680. Its totient is φ = 731292120.

The previous prime is 1111002161. The next prime is 1111002203. The reversal of 1111002201 is 1022001111.

It is a happy number.

It is not a de Polignac number, because 1111002201 - 2¹³ = 1110994009 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (1111002203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 780585 + ... + 782006.

It is an arithmetic number, because the mean of its divisors is an integer number (135424640).

Almost surely, 2^1111002201 is an apocalyptic number.

It is an amenable number.

1111002201 is a deficient number, since it is larger than the sum of its proper divisors (514093479).

1111002201 is a wasteful number, since it uses less digits than its factorization.

1111002201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1562676 (or 1562673 counting only the distinct ones).

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

The square root of 1111002201 is about 33331.6996416324. The cubic root of 1111002201 is about 1035.7103266418.

Adding to 1111002201 its reverse (1022001111), we get a palindrome (2133003312).

The spelling of 1111002201 in words is "one billion, one hundred eleven million, two thousand, two hundred one".