121020202102002 has 96 divisors (see below), whose sum is σ = 298089163627200. Its totient is φ = 32567998845312.

The previous prime is 121020202102001. The next prime is 121020202102003. The reversal of 121020202102002 is 200201202020121.

It is an interprime number because it is at equal distance from previous prime (121020202102001) and next prime (121020202102003).

It is not an unprimeable number, because it can be changed into a prime (121020202102001) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 61648977 + ... + 63581732.

It is an arithmetic number, because the mean of its divisors is an integer number (3105095454450).

Almost surely, 2^{121020202102002} is an apocalyptic number.

121020202102002 is an abundant number, since it is smaller than the sum of its proper divisors (177068961525198).

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

121020202102002 is a wasteful number, since it uses less digits than its factorization.

121020202102002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125230920 (or 125230913 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 121020202102002 its reverse (200201202020121), we get a palindrome (321221404122123).

The spelling of 121020202102002 in words is "one hundred twenty-one trillion, twenty billion, two hundred two million, one hundred two thousand, two".