10011020221021 has 8 divisors (see below), whose sum is σ = 10603031562360. Its totient is φ = 9419356412928.

The previous prime is 10011020220979. The next prime is 10011020221039. The reversal of 10011020221021 is 12012202011001.

It can be written as a sum of positive squares in 4 ways, for example, as 6565950132921 + 3445070088100 = 2562411^2 + 1856090^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10011020221021 - 2¹³ = 10011020212829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10011020220992 and 10011020221010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10011020228021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86823996 + ... + 86939221.

It is an arithmetic number, because the mean of its divisors is an integer number (1325378945295).

Almost surely, 2^{10011020221021} is an apocalyptic number.

It is an amenable number.

10011020221021 is a deficient number, since it is larger than the sum of its proper divisors (592011341339).

10011020221021 is a wasteful number, since it uses less digits than its factorization.

10011020221021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173766623.

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

Adding to 10011020221021 its reverse (12012202011001), we get a palindrome (22023222232022).

The spelling of 10011020221021 in words is "ten trillion, eleven billion, twenty million, two hundred twenty-one thousand, twenty-one".