1111221002211 has 8 divisors (see below), whose sum is σ = 1529422454784. Its totient is φ = 716916775560.

The previous prime is 1111221002207. The next prime is 1111221002261. The reversal of 1111221002211 is 1122001221111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1111221002211 - 2² = 1111221002207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1111221002261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5974306371 + ... + 5974306556.

It is an arithmetic number, because the mean of its divisors is an integer number (191177806848).

Almost surely, 2^{1111221002211} is an apocalyptic number.

1111221002211 is a deficient number, since it is larger than the sum of its proper divisors (418201452573).

1111221002211 is a wasteful number, since it uses less digits than its factorization.

1111221002211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11948612961.

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

Adding to 1111221002211 its reverse (1122001221111), we get a palindrome (2233222223322).

The spelling of 1111221002211 in words is "one trillion, one hundred eleven billion, two hundred twenty-one million, two thousand, two hundred eleven".