1111022221011 has 8 divisors (see below), whose sum is σ = 1545770046720. Its totient is φ = 708477937992.

The previous prime is 1111022221009. The next prime is 1111022221021. The reversal of 1111022221011 is 1101222201111.

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 1111022221011 - 2¹ = 1111022221009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1111022221021) 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, 8050885591 + ... + 8050885728.

It is an arithmetic number, because the mean of its divisors is an integer number (193221255840).

Almost surely, 2^{1111022221011} is an apocalyptic number.

1111022221011 is a deficient number, since it is larger than the sum of its proper divisors (434747825709).

1111022221011 is a wasteful number, since it uses less digits than its factorization.

1111022221011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16101771345.

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

Adding to 1111022221011 its reverse (1101222201111), we get a palindrome (2212244422122).

The spelling of 1111022221011 in words is "one trillion, one hundred eleven billion, twenty-two million, two hundred twenty-one thousand, eleven".