10201123110021 has 4 divisors (see below), whose sum is σ = 13601497480032. Its totient is φ = 6800748740012.

The previous prime is 10201123109941. The next prime is 10201123110041. The reversal of 10201123110021 is 12001132110201.

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 10201123110021 - 2⁷ = 10201123109893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10201123110041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1700187185001 + ... + 1700187185006.

It is an arithmetic number, because the mean of its divisors is an integer number (3400374370008).

Almost surely, 2^{10201123110021} is an apocalyptic number.

It is an amenable number.

10201123110021 is a deficient number, since it is larger than the sum of its proper divisors (3400374370011).

10201123110021 is an equidigital number, since it uses as much as digits as its factorization.

10201123110021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3400374370010.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 10201123110021 its reverse (12001132110201), we get a palindrome (22202255220222).

The spelling of 10201123110021 in words is "ten trillion, two hundred one billion, one hundred twenty-three million, one hundred ten thousand, twenty-one".