1100020020221 has 32 divisors (see below), whose sum is σ = 1183151059200. Its totient is φ = 1019096432640.

The previous prime is 1100020020199. The next prime is 1100020020227. The reversal of 1100020020221 is 1220200200011.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1100020020221 - 2²² = 1100015825917 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 (1100020020227) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 154298585 + ... + 154305713.

It is an arithmetic number, because the mean of its divisors is an integer number (36973470600).

Almost surely, 2^{1100020020221} is an apocalyptic number.

It is an amenable number.

1100020020221 is a deficient number, since it is larger than the sum of its proper divisors (83131038979).

1100020020221 is a wasteful number, since it uses less digits than its factorization.

1100020020221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7829.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 1100020020221 its reverse (1220200200011), we get a palindrome (2320220220232).

The spelling of 1100020020221 in words is "one trillion, one hundred billion, twenty million, twenty thousand, two hundred twenty-one".