1032100022021 has 4 divisors (see below), whose sum is σ = 1032113728044. Its totient is φ = 1032086316000.

The previous prime is 1032100021921. The next prime is 1032100022027. The reversal of 1032100022021 is 1202200012301.

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 482033049796 + 550066972225 = 694286^2 + 741665^2 .

It is a cyclic number.

It is not a de Polignac number, because 1032100022021 - 2³⁸ = 757222115077 is a prime.

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 = 1032100021987 and 1032100022005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1032100022027) 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 3 ways as a sum of consecutive naturals, for example, 6739430 + ... + 6890871.

It is an arithmetic number, because the mean of its divisors is an integer number (258028432011).

Almost surely, 2^{1032100022021} is an apocalyptic number.

It is an amenable number.

1032100022021 is a deficient number, since it is larger than the sum of its proper divisors (13706023).

1032100022021 is an equidigital number, since it uses as much as digits as its factorization.

1032100022021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13706022.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 1032100022021 its reverse (1202200012301), we get a palindrome (2234300034322).

The spelling of 1032100022021 in words is "one trillion, thirty-two billion, one hundred million, twenty-two thousand, twenty-one".