102001211110121 has 4 divisors (see below), whose sum is σ = 102065646494592. Its totient is φ = 101936775725652.

The previous prime is 102001211110093. The next prime is 102001211110163. The reversal of 102001211110121 is 121011112100201.

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 102001211110121 - 2¹⁴ = 102001211093737 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 102001211110096 and 102001211110105.

It is not an unprimeable number, because it can be changed into a prime (102001211110621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32217689861 + ... + 32217693026.

It is an arithmetic number, because the mean of its divisors is an integer number (25516411623648).

Almost surely, 2^{102001211110121} is an apocalyptic number.

It is an amenable number.

102001211110121 is a deficient number, since it is larger than the sum of its proper divisors (64435384471).

102001211110121 is an equidigital number, since it uses as much as digits as its factorization.

102001211110121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64435384470.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 102001211110121 its reverse (121011112100201), we get a palindrome (223012323210322).

The spelling of 102001211110121 in words is "one hundred two trillion, one billion, two hundred eleven million, one hundred ten thousand, one hundred twenty-one".