1100101002021 has 12 divisors (see below), whose sum is σ = 1816039749472. Its totient is φ = 628629143976.

The previous prime is 1100101002017. The next prime is 1100101002043. The reversal of 1100101002021 is 1202001010011.

It is a happy number.

It is not a de Polignac number, because 1100101002021 - 2² = 1100101002017 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 Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1100101001994 and 1100101002012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100101002001) 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, 8730960271 + ... + 8730960396.

Almost surely, 2^{1100101002021} is an apocalyptic number.

It is an amenable number.

1100101002021 is a deficient number, since it is larger than the sum of its proper divisors (715938747451).

1100101002021 is a wasteful number, since it uses less digits than its factorization.

1100101002021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17461920680 (or 17461920677 counting only the distinct ones).

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

Adding to 1100101002021 its reverse (1202001010011), we get a palindrome (2302102012032).

The spelling of 1100101002021 in words is "one trillion, one hundred billion, one hundred one million, two thousand, twenty-one".