1100221111031 has 8 divisors (see below), whose sum is σ = 1257407196960. Its totient is φ = 943037935488.

The previous prime is 1100221111001. The next prime is 1100221111039. The reversal of 1100221111031 is 1301111220011.

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

It is a cyclic number.

It is not a de Polignac number, because 1100221111031 - 2³⁰ = 1099147369207 is a prime.

It is a super-2 number, since 2×1100221111031² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1100221110997 and 1100221111015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100221111039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153635 + ... + 1491323.

It is an arithmetic number, because the mean of its divisors is an integer number (157175899620).

Almost surely, 2^{1100221111031} is an apocalyptic number.

1100221111031 is a deficient number, since it is larger than the sum of its proper divisors (157186085929).

1100221111031 is a wasteful number, since it uses less digits than its factorization.

1100221111031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1455193.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 1100221111031 its reverse (1301111220011), we get a palindrome (2401332331042).

The spelling of 1100221111031 in words is "one trillion, one hundred billion, two hundred twenty-one million, one hundred eleven thousand, thirty-one".