121010020102 has 12 divisors (see below), whose sum is σ = 185834484900. Its totient is φ = 59097914988.

The previous prime is 121010020099. The next prime is 121010020163. The reversal of 121010020102 is 201020010121.

It is a congruent number.

It is an unprimeable number.

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 in 5 ways as a sum of consecutive naturals, for example, 16357852 + ... + 16365247.

It is an arithmetic number, because the mean of its divisors is an integer number (15486207075).

Almost surely, 2^121010020102 is an apocalyptic number.

121010020102 is a deficient number, since it is larger than the sum of its proper divisors (64824464798).

121010020102 is an equidigital number, since it uses as much as digits as its factorization.

121010020102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32723187 (or 32723144 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 121010020102 its reverse (201020010121), we get a palindrome (322030030223).

The spelling of 121010020102 in words is "one hundred twenty-one billion, ten million, twenty thousand, one hundred two".