102110121011121 has 4 divisors (see below), whose sum is σ = 136146828014832. Its totient is φ = 68073414007412.

The previous prime is 102110121011077. The next prime is 102110121011147. The reversal of 102110121011121 is 121110121011201.

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 102110121011121 - 2²⁶ = 102110053902257 is a prime.

It is a super-2 number, since 2×102110121011121² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 102110121011121.

It is not an unprimeable number, because it can be changed into a prime (102110121011021) 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, 17018353501851 + ... + 17018353501856.

It is an arithmetic number, because the mean of its divisors is an integer number (34036707003708).

Almost surely, 2^{102110121011121} is an apocalyptic number.

It is an amenable number.

102110121011121 is a deficient number, since it is larger than the sum of its proper divisors (34036707003711).

102110121011121 is an equidigital number, since it uses as much as digits as its factorization.

102110121011121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34036707003710.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 102110121011121 its reverse (121110121011201), we get a palindrome (223220242022322).

The spelling of 102110121011121 in words is "one hundred two trillion, one hundred ten billion, one hundred twenty-one million, eleven thousand, one hundred twenty-one".