121011121010202 has 32 divisors (see below), whose sum is σ = 254764847411520. Its totient is φ = 38213349315840.

The previous prime is 121011121010173. The next prime is 121011121010257. The reversal of 121011121010202 is 202010121110121.

It is a happy number.

121011121010202 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 15 ways as a sum of consecutive naturals, for example, 3198049 + ... + 15882372.

It is an arithmetic number, because the mean of its divisors is an integer number (7961401481610).

Almost surely, 2^{121011121010202} is an apocalyptic number.

121011121010202 is an abundant number, since it is smaller than the sum of its proper divisors (133753726401318).

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

121011121010202 is a wasteful number, since it uses less digits than its factorization.

121011121010202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19136078.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 121011121010202 its reverse (202010121110121), we get a palindrome (323021242120323).

The spelling of 121011121010202 in words is "one hundred twenty-one trillion, eleven billion, one hundred twenty-one million, ten thousand, two hundred two".