121201211111102 has 16 divisors (see below), whose sum is σ = 184808190304512. Its totient is φ = 59598760751520.

The previous prime is 121201211111047. The next prime is 121201211111107. The reversal of 121201211111102 is 201111112102121.

121201211111102 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121201211111107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69065333 + ... + 70798464.

It is an arithmetic number, because the mean of its divisors is an integer number (11550511894032).

Almost surely, 2^{121201211111102} is an apocalyptic number.

121201211111102 is a deficient number, since it is larger than the sum of its proper divisors (63606979193410).

121201211111102 is a wasteful number, since it uses less digits than its factorization.

121201211111102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139870963.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 121201211111102 its reverse (201111112102121), we get a palindrome (322312323213223).

The spelling of 121201211111102 in words is "one hundred twenty-one trillion, two hundred one billion, two hundred eleven million, one hundred eleven thousand, one hundred two".