10021110120221 has 4 divisors (see below), whose sum is σ = 10021116631200. Its totient is φ = 10021103609244.

The previous prime is 10021110120193. The next prime is 10021110120269. The reversal of 10021110120221 is 12202101112001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 10021110120221 - 2³⁰ = 10020036378397 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10021110120196 and 10021110120205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10021110120271) 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, 488240 + ... + 4503398.

It is an arithmetic number, because the mean of its divisors is an integer number (2505279157800).

Almost surely, 2^{10021110120221} is an apocalyptic number.

It is an amenable number.

10021110120221 is a deficient number, since it is larger than the sum of its proper divisors (6510979).

10021110120221 is an equidigital number, since it uses as much as digits as its factorization.

10021110120221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6510978.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 10021110120221 its reverse (12202101112001), we get a palindrome (22223211232222).

The spelling of 10021110120221 in words is "ten trillion, twenty-one billion, one hundred ten million, one hundred twenty thousand, two hundred twenty-one".