1101002021021 has 16 divisors (see below), whose sum is σ = 1269578784000. Its totient is φ = 935249995008.

The previous prime is 1101002020969. The next prime is 1101002021033. The reversal of 1101002021021 is 1201202001011.

It is not a de Polignac number, because 1101002021021 - 2¹⁸ = 1101001758877 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1101002020993 and 1101002021011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101002021051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6720875 + ... + 6882743.

It is an arithmetic number, because the mean of its divisors is an integer number (79348674000).

Almost surely, 2^{1101002021021} is an apocalyptic number.

It is an amenable number.

1101002021021 is a deficient number, since it is larger than the sum of its proper divisors (168576762979).

1101002021021 is a wasteful number, since it uses less digits than its factorization.

1101002021021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170588.

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

Adding to 1101002021021 its reverse (1201202001011), we get a palindrome (2302204022032).

The spelling of 1101002021021 in words is "one trillion, one hundred one billion, two million, twenty-one thousand, twenty-one".