121021012212212 has 12 divisors (see below), whose sum is σ = 242042024424480. Its totient is φ = 51866148090936.

The previous prime is 121021012212181. The next prime is 121021012212259. The reversal of 121021012212212 is 212212210120121.

121021012212212 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2161089503762 + ... + 2161089503817.

It is an arithmetic number, because the mean of its divisors is an integer number (20170168702040).

Almost surely, 2^{121021012212212} is an apocalyptic number.

It is an amenable number.

121021012212212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

121021012212212 is a wasteful number, since it uses less digits than its factorization.

121021012212212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4322179007590 (or 4322179007588 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 121021012212212 its reverse (212212210120121), we get a palindrome (333233222332333).

The spelling of 121021012212212 in words is "one hundred twenty-one trillion, twenty-one billion, twelve million, two hundred twelve thousand, two hundred twelve".