1100020021111 has 8 divisors (see below), whose sum is σ = 1200145050000. Its totient is φ = 999915527040.

The previous prime is 1100020021073. The next prime is 1100020021127. The reversal of 1100020021111 is 1111200200011.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1100020021111 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 (1100020021211) 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, 5021586 + ... + 5236063.

It is an arithmetic number, because the mean of its divisors is an integer number (150018131250).

Almost surely, 2^{1100020021111} is an apocalyptic number.

1100020021111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1100020021111 is a deficient number, since it is larger than the sum of its proper divisors (100125028889).

1100020021111 is a wasteful number, since it uses less digits than its factorization.

1100020021111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10267409.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 1100020021111 its reverse (1111200200011), we get a palindrome (2211220221122).

The spelling of 1100020021111 in words is "one trillion, one hundred billion, twenty million, twenty-one thousand, one hundred eleven".