1100002021011 has 8 divisors (see below), whose sum is σ = 1629632623760. Its totient is φ = 733334680656.

The previous prime is 1100002020979. The next prime is 1100002021031. The reversal of 1100002021011 is 1101202000011.

It is a happy number.

It is not a de Polignac number, because 1100002021011 - 2⁵ = 1100002020979 is a prime.

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

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1100002020984 and 1100002021002.

It is not an unprimeable number, because it can be changed into a prime (1100002021031) 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, 20370407770 + ... + 20370407823.

It is an arithmetic number, because the mean of its divisors is an integer number (203704077970).

Almost surely, 2^{1100002021011} is an apocalyptic number.

1100002021011 is a deficient number, since it is larger than the sum of its proper divisors (529630602749).

1100002021011 is an equidigital number, since it uses as much as digits as its factorization.

1100002021011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40740815602 (or 40740815596 counting only the distinct ones).

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

Adding to 1100002021011 its reverse (1101202000011), we get a palindrome (2201204021022).

The spelling of 1100002021011 in words is "one trillion, one hundred billion, two million, twenty-one thousand, eleven".