121002101002101 has 32 divisors (see below), whose sum is σ = 177224618880000. Its totient is φ = 72826342617600.

The previous prime is 121002101002099. The next prime is 121002101002157. The reversal of 121002101002101 is 101200101200121.

It is not a de Polignac number, because 121002101002101 - 2¹ = 121002101002099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121002101002801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2286945 + ... + 15723686.

It is an arithmetic number, because the mean of its divisors is an integer number (5538269340000).

Almost surely, 2^{121002101002101} is an apocalyptic number.

121002101002101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121002101002101 is a deficient number, since it is larger than the sum of its proper divisors (56222517877899).

121002101002101 is a wasteful number, since it uses less digits than its factorization.

121002101002101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18012057.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 121002101002101 its reverse (101200101200121), we get a palindrome (222202202202222).

The spelling of 121002101002101 in words is "one hundred twenty-one trillion, two billion, one hundred one million, two thousand, one hundred one".