121112102021002 has 8 divisors (see below), whose sum is σ = 181675333383012. Its totient is φ = 60553657560000.

The previous prime is 121112102020999. The next prime is 121112102021003. The reversal of 121112102021002 is 200120201211121.

It can be written as a sum of positive squares in 2 ways, for example, as 108487660579081 + 12624441441921 = 10415741^2 + 3553089^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (121112102021003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1196661999 + ... + 1196763202.

Almost surely, 2^{121112102021002} is an apocalyptic number.

121112102021002 is a deficient number, since it is larger than the sum of its proper divisors (60563231362010).

121112102021002 is a wasteful number, since it uses less digits than its factorization.

121112102021002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2393450504.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 121112102021002 its reverse (200120201211121), we get a palindrome (321232303232123).

The spelling of 121112102021002 in words is "one hundred twenty-one trillion, one hundred twelve billion, one hundred two million, twenty-one thousand, two".