10011022012021 has 4 divisors (see below), whose sum is σ = 10011028412044. Its totient is φ = 10011015612000.

The previous prime is 10011022012003. The next prime is 10011022012177. The reversal of 10011022012021 is 12021022011001.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 4394662359025 + 5616359652996 = 2096345^2 + 2369886^2 .

It is a cyclic number.

It is not a de Polignac number, because 10011022012021 - 2³⁹ = 9461266198133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10011022011992 and 10011022012010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10011022019021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 882121 + ... + 4560721.

It is an arithmetic number, because the mean of its divisors is an integer number (2502757103011).

Almost surely, 2^{10011022012021} is an apocalyptic number.

It is an amenable number.

10011022012021 is a deficient number, since it is larger than the sum of its proper divisors (6400023).

10011022012021 is an equidigital number, since it uses as much as digits as its factorization.

10011022012021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6400022.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 10011022012021 its reverse (12021022011001), we get a palindrome (22032044023022).

The spelling of 10011022012021 in words is "ten trillion, eleven billion, twenty-two million, twelve thousand, twenty-one".