121202002112212 has 72 divisors (see below), whose sum is σ = 260048593140000. Its totient is φ = 49147305875136.

The previous prime is 121202002112203. The next prime is 121202002112281. The reversal of 121202002112212 is 212211200202121.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 121202002112212.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 17746587 + ... + 23608162.

Almost surely, 2^{121202002112212} is an apocalyptic number.

It is an amenable number.

121202002112212 is an abundant number, since it is smaller than the sum of its proper divisors (138846591027788).

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

121202002112212 is a wasteful number, since it uses less digits than its factorization.

121202002112212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41355573 (or 41355564 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 121202002112212 its reverse (212211200202121), we get a palindrome (333413202314333).

The spelling of 121202002112212 in words is "one hundred twenty-one trillion, two hundred two billion, two million, one hundred twelve thousand, two hundred twelve".