1100010021 has 8 divisors (see below), whose sum is σ = 1600014624. Its totient is φ = 666672720.

The previous prime is 1100010019. The next prime is 1100010031. The reversal of 1100010021 is 1200100011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1100010021 - 2¹ = 1100010019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1100009991 and 1100010009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100010001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16666786 + ... + 16666851.

It is an arithmetic number, because the mean of its divisors is an integer number (200001828).

Almost surely, 2^1100010021 is an apocalyptic number.

1100010021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1100010021 is a deficient number, since it is larger than the sum of its proper divisors (500004603).

1100010021 is a wasteful number, since it uses less digits than its factorization.

1100010021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33333651.

The product of its (nonzero) digits is 2, while the sum is 6.

The square root of 1100010021 is about 33166.3989754691. The cubic root of 1100010021 is about 1032.2832501375.

Adding to 1100010021 its reverse (1200100011), we get a palindrome (2300110032).

The spelling of 1100010021 in words is "one billion, one hundred million, ten thousand, twenty-one".