1111021202205 has 64 divisors (see below), whose sum is σ = 2092618644480. Its totient is φ = 557346511872.

The previous prime is 1111021202197. The next prime is 1111021202227. The reversal of 1111021202205 is 5022021201111.

It is not a de Polignac number, because 1111021202205 - 2³ = 1111021202197 is a prime.

It is a super-2 number, since 2×1111021202205² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 3609052 + ... + 3904778.

It is an arithmetic number, because the mean of its divisors is an integer number (32697166320).

Almost surely, 2^{1111021202205} is an apocalyptic number.

1111021202205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1111021202205 is a deficient number, since it is larger than the sum of its proper divisors (981597442275).

1111021202205 is a wasteful number, since it uses less digits than its factorization.

1111021202205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297395 (or 297389 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 18.

Adding to 1111021202205 its reverse (5022021201111), we get a palindrome (6133042403316).

The spelling of 1111021202205 in words is "one trillion, one hundred eleven billion, twenty-one million, two hundred two thousand, two hundred five".