121012210102103 has 16 divisors (see below), whose sum is σ = 129236701651200. Its totient is φ = 113058612387840.

The previous prime is 121012210102099. The next prime is 121012210102117. The reversal of 121012210102103 is 301201012210121.

It is a happy number.

It is not a de Polignac number, because 121012210102103 - 2² = 121012210102099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121012210104103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1666775 + ... + 15646167.

It is an arithmetic number, because the mean of its divisors is an integer number (8077293853200).

Almost surely, 2^{121012210102103} is an apocalyptic number.

121012210102103 is a deficient number, since it is larger than the sum of its proper divisors (8224491549097).

121012210102103 is a wasteful number, since it uses less digits than its factorization.

121012210102103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13989082.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 121012210102103 its reverse (301201012210121), we get a palindrome (422213222312224).

The spelling of 121012210102103 in words is "one hundred twenty-one trillion, twelve billion, two hundred ten million, one hundred two thousand, one hundred three".