1010010112021 has 4 divisors (see below), whose sum is σ = 1010012390572. Its totient is φ = 1010007833472.

The previous prime is 1010010112009. The next prime is 1010010112037. The reversal of 1010010112021 is 1202110100101.

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 341026800625 + 668983311396 = 583975^2 + 817914^2 .

It is a cyclic number.

It is not a de Polignac number, because 1010010112021 - 2¹³ = 1010010103829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1010010111989 and 1010010112007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010010112621) 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, 235260 + ... + 1440613.

It is an arithmetic number, because the mean of its divisors is an integer number (252503097643).

Almost surely, 2^{1010010112021} is an apocalyptic number.

It is an amenable number.

1010010112021 is a deficient number, since it is larger than the sum of its proper divisors (2278551).

1010010112021 is an equidigital number, since it uses as much as digits as its factorization.

1010010112021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2278550.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 1010010112021 its reverse (1202110100101), we get a palindrome (2212120212122).

It can be divided in two parts, 10100101 and 12021, that multiplied together give a palindrome (121413314121).

The spelling of 1010010112021 in words is "one trillion, ten billion, ten million, one hundred twelve thousand, twenty-one".