10021111110121 has 4 divisors (see below), whose sum is σ = 10030830908544. Its totient is φ = 10011391311700.

The previous prime is 10021111110097. The next prime is 10021111110161. The reversal of 10021111110121 is 12101111112001.

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.

It is a cyclic number.

It is not a de Polignac number, because 10021111110121 - 2²⁹ = 10020574239209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10021111110161) 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, 4859897665 + ... + 4859899726.

It is an arithmetic number, because the mean of its divisors is an integer number (2507707727136).

Almost surely, 2^{10021111110121} is an apocalyptic number.

It is an amenable number.

10021111110121 is a deficient number, since it is larger than the sum of its proper divisors (9719798423).

10021111110121 is an equidigital number, since it uses as much as digits as its factorization.

10021111110121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9719798422.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 10021111110121 its reverse (12101111112001), we get a palindrome (22122222222122).

The spelling of 10021111110121 in words is "ten trillion, twenty-one billion, one hundred eleven million, one hundred ten thousand, one hundred twenty-one".