121210210011212 has 48 divisors (see below), whose sum is σ = 249868747645440. Its totient is φ = 50368798795392.

The previous prime is 121210210011139. The next prime is 121210210011221. The reversal of 121210210011212 is 212110012012121.

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, 367254512 + ... + 367584407.

It is an arithmetic number, because the mean of its divisors is an integer number (5205598909280).

Almost surely, 2^{121210210011212} is an apocalyptic number.

It is an amenable number.

121210210011212 is an abundant number, since it is smaller than the sum of its proper divisors (128658537634228).

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

121210210011212 is a wasteful number, since it uses less digits than its factorization.

121210210011212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734839110 (or 734839108 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 121210210011212 its reverse (212110012012121), we get a palindrome (333320222023333).

The spelling of 121210210011212 in words is "one hundred twenty-one trillion, two hundred ten billion, two hundred ten million, eleven thousand, two hundred twelve".