1102022000021 has 4 divisors (see below), whose sum is σ = 1102533856332. Its totient is φ = 1101510143712.

The previous prime is 1102022000017. The next prime is 1102022000029. The reversal of 1102022000021 is 1200002202011.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 446739844996 + 655282155025 = 668386^2 + 809495^2 .

It is a cyclic number.

It is not a de Polignac number, because 1102022000021 - 2² = 1102022000017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1102021999966 and 1102022000011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1102022000029) 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 3 ways as a sum of consecutive naturals, for example, 255924926 + ... + 255929231.

It is an arithmetic number, because the mean of its divisors is an integer number (275633464083).

Almost surely, 2^{1102022000021} is an apocalyptic number.

It is an amenable number.

1102022000021 is a deficient number, since it is larger than the sum of its proper divisors (511856311).

1102022000021 is an equidigital number, since it uses as much as digits as its factorization.

1102022000021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511856310.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 1102022000021 its reverse (1200002202011), we get a palindrome (2302024202032).

The spelling of 1102022000021 in words is "one trillion, one hundred two billion, twenty-two million, twenty-one", and thus it is an aban number.