1000221320111 has 16 divisors (see below), whose sum is σ = 1089681374880. Its totient is φ = 912557775360.

The previous prime is 1000221320099. The next prime is 1000221320113. The reversal of 1000221320111 is 1110231220001.

It is a cyclic number.

It is not a de Polignac number, because 1000221320111 - 2²⁶ = 1000154211247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000221320113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2882216 + ... + 3210546.

It is an arithmetic number, because the mean of its divisors is an integer number (68105085930).

Almost surely, 2^{1000221320111} is an apocalyptic number.

1000221320111 is a deficient number, since it is larger than the sum of its proper divisors (89460054769).

1000221320111 is a wasteful number, since it uses less digits than its factorization.

1000221320111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331066.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 1000221320111 its reverse (1110231220001), we get a palindrome (2110452540112).

The spelling of 1000221320111 in words is "one trillion, two hundred twenty-one million, three hundred twenty thousand, one hundred eleven".