121343115220212 has 24 divisors (see below), whose sum is σ = 288476085242016. Its totient is φ = 39684540826528.

The previous prime is 121343115220169. The next prime is 121343115220231. The reversal of 121343115220212 is 212022511343121.

It is a super-2 number, since 2×121343115220212² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121343115220212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95395530198 + ... + 95395531469.

It is an arithmetic number, because the mean of its divisors is an integer number (12019836885084).

Almost surely, 2^{121343115220212} is an apocalyptic number.

121343115220212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121343115220212 is an abundant number, since it is smaller than the sum of its proper divisors (167132970021804).

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

121343115220212 is a wasteful number, since it uses less digits than its factorization.

121343115220212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190791061727 (or 190791061725 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

Adding to 121343115220212 its reverse (212022511343121), we get a palindrome (333365626563333).

The spelling of 121343115220212 in words is "one hundred twenty-one trillion, three hundred forty-three billion, one hundred fifteen million, two hundred twenty thousand, two hundred twelve".