121002100102 has 48 divisors (see below), whose sum is σ = 205277442048. Its totient is φ = 53368629600.

The previous prime is 121002100097. The next prime is 121002100103. The reversal of 121002100102 is 201001200121.

121002100102 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 (121002100103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8941113 + ... + 8954635.

It is an arithmetic number, because the mean of its divisors is an integer number (4276613376).

Almost surely, 2^121002100102 is an apocalyptic number.

121002100102 is a deficient number, since it is larger than the sum of its proper divisors (84275341946).

121002100102 is a wasteful number, since it uses less digits than its factorization.

121002100102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14725 (or 14712 counting only the distinct ones).

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

Adding to 121002100102 its reverse (201001200121), we get a palindrome (322003300223).

The spelling of 121002100102 in words is "one hundred twenty-one billion, two million, one hundred thousand, one hundred two".