102111012002121 has 8 divisors (see below), whose sum is σ = 136148063113920. Its totient is φ = 68073984445872.

The previous prime is 102111012002119. The next prime is 102111012002173. The reversal of 102111012002121 is 121200210111201.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 102111012002121 - 2¹ = 102111012002119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102111012002121.

It is not an unprimeable number, because it can be changed into a prime (102111012002221) 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 7 ways as a sum of consecutive naturals, for example, 11917900 + ... + 18608018.

It is an arithmetic number, because the mean of its divisors is an integer number (17018507889240).

Almost surely, 2^{102111012002121} is an apocalyptic number.

It is an amenable number.

102111012002121 is a deficient number, since it is larger than the sum of its proper divisors (34037051111799).

102111012002121 is an equidigital number, since it uses as much as digits as its factorization.

102111012002121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11777775.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 102111012002121 its reverse (121200210111201), we get a palindrome (223311222113322).

The spelling of 102111012002121 in words is "one hundred two trillion, one hundred eleven billion, twelve million, two thousand, one hundred twenty-one".