1111000221006 has 128 divisors (see below), whose sum is σ = 2510093988864. Its totient is φ = 325518842880.

The previous prime is 1111000220989. The next prime is 1111000221031. The reversal of 1111000221006 is 6001220001111.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 320818431 + ... + 320821893.

It is an arithmetic number, because the mean of its divisors is an integer number (19610109288).

Almost surely, 2^{1111000221006} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1111000221006, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1255046994432).

1111000221006 is an abundant number, since it is smaller than the sum of its proper divisors (1399093767858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1111000221006 is a wasteful number, since it uses less digits than its factorization.

1111000221006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5898.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 1111000221006 its reverse (6001220001111), we get a palindrome (7112220222117).

The spelling of 1111000221006 in words is "one trillion, one hundred eleven billion, two hundred twenty-one thousand, six".