1101012000021 has 10 divisors (see below), whose sum is σ = 1644721629782. Its totient is φ = 734007999960.

The previous prime is 1101011999963. The next prime is 1101012000113. The reversal of 1101012000021 is 1200002101011.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 970412159025 + 130599840996 = 985095^2 + 361386^2 .

It is not a de Polignac number, because 1101012000021 - 2⁹ = 1101011999509 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 = 1101011999967 and 1101012000012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101012004021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 6796370290 + ... + 6796370451.

Almost surely, 2^{1101012000021} is an apocalyptic number.

It is an amenable number.

1101012000021 is a deficient number, since it is larger than the sum of its proper divisors (543709629761).

1101012000021 is an equidigital number, since it uses as much as digits as its factorization.

1101012000021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13592740753 (or 13592740744 counting only the distinct ones).

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

Adding to 1101012000021 its reverse (1200002101011), we get a palindrome (2301014101032).

The spelling of 1101012000021 in words is "one trillion, one hundred one billion, twelve million, twenty-one", and thus it is an aban number.