121201310102 has 4 divisors (see below), whose sum is σ = 181801965156. Its totient is φ = 60600655050.

The previous prime is 121201310101. The next prime is 121201310179. The reversal of 121201310102 is 201013102121.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121201310101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30300327524 + ... + 30300327527.

It is an arithmetic number, because the mean of its divisors is an integer number (45450491289).

Almost surely, 2^121201310102 is an apocalyptic number.

121201310102 is a deficient number, since it is larger than the sum of its proper divisors (60600655054).

121201310102 is an equidigital number, since it uses as much as digits as its factorization.

121201310102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60600655053.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 121201310102 its reverse (201013102121), we get a palindrome (322214412223).

The spelling of 121201310102 in words is "one hundred twenty-one billion, two hundred one million, three hundred ten thousand, one hundred two".