1100220110021 has 4 divisors (see below), whose sum is σ = 1135711081344. Its totient is φ = 1064729138700.

The previous prime is 1100220110009. The next prime is 1100220110069. The reversal of 1100220110021 is 1200110220011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1100220110021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1100220109984 and 1100220110011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100220110321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17745485615 + ... + 17745485676.

It is an arithmetic number, because the mean of its divisors is an integer number (283927770336).

Almost surely, 2^{1100220110021} is an apocalyptic number.

It is an amenable number.

1100220110021 is a deficient number, since it is larger than the sum of its proper divisors (35490971323).

1100220110021 is an equidigital number, since it uses as much as digits as its factorization.

1100220110021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35490971322.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1100220110021 its reverse (1200110220011), we get a palindrome (2300330330032).

The spelling of 1100220110021 in words is "one trillion, one hundred billion, two hundred twenty million, one hundred ten thousand, twenty-one".