121020121020102 has 16 divisors (see below), whose sum is σ = 245449259534592. Its totient is φ = 39771870757640.

The previous prime is 121020121020061. The next prime is 121020121020151. The reversal of 121020121020102 is 201020121020121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142042395138 + ... + 142042395989.

It is an arithmetic number, because the mean of its divisors is an integer number (15340578720912).

Almost surely, 2^{121020121020102} is an apocalyptic number.

121020121020102 is an abundant number, since it is smaller than the sum of its proper divisors (124429138514490).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121020121020102 is a wasteful number, since it uses less digits than its factorization.

121020121020102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284084791203.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 121020121020102 its reverse (201020121020121), we get a palindrome (322040242040223).

The spelling of 121020121020102 in words is "one hundred twenty-one trillion, twenty billion, one hundred twenty-one million, twenty thousand, one hundred two".