9212120121202 has 4 divisors (see below), whose sum is σ = 13818180181806. Its totient is φ = 4606060060600.

The previous prime is 9212120121179. The next prime is 9212120121247. The reversal of 9212120121202 is 2021210212129.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 8284213689361 + 927906431841 = 2878231^2 + 963279^2 .

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 as a sum of consecutive naturals, namely, 2303030030299 + ... + 2303030030302.

Almost surely, 2^{9212120121202} is an apocalyptic number.

9212120121202 is a deficient number, since it is larger than the sum of its proper divisors (4606060060604).

9212120121202 is a wasteful number, since it uses less digits than its factorization.

9212120121202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4606060060603.

The product of its (nonzero) digits is 576, while the sum is 25.

The spelling of 9212120121202 in words is "nine trillion, two hundred twelve billion, one hundred twenty million, one hundred twenty-one thousand, two hundred two".