1100021100201 has 12 divisors (see below), whose sum is σ = 1672546702320. Its totient is φ = 694750168440.

The previous prime is 1100021100187. The next prime is 1100021100203. The reversal of 1100021100201 is 1020011200011.

It is a happy number.

It is not a de Polignac number, because 1100021100201 - 2⁵ = 1100021100169 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (1100021100203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3216435795 + ... + 3216436136.

It is an arithmetic number, because the mean of its divisors is an integer number (139378891860).

Almost surely, 2^{1100021100201} is an apocalyptic number.

It is an amenable number.

1100021100201 is a deficient number, since it is larger than the sum of its proper divisors (572525602119).

1100021100201 is a wasteful number, since it uses less digits than its factorization.

1100021100201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6432871956 (or 6432871953 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 1100021100201 its reverse (1020011200011), we get a palindrome (2120032300212).

The spelling of 1100021100201 in words is "one trillion, one hundred billion, twenty-one million, one hundred thousand, two hundred one".