121222200000212 has 12 divisors (see below), whose sum is σ = 212417613277716. Its totient is φ = 60531453349440.

The previous prime is 121222200000131. The next prime is 121222200000311. The reversal of 121222200000212 is 212000002222121.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 45440056373776 + 75782143626436 = 6740924^2 + 8705294^2 .

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, 19911659243 + ... + 19911665330.

It is an arithmetic number, because the mean of its divisors is an integer number (17701467773143).

Almost surely, 2^{121222200000212} is an apocalyptic number.

It is an amenable number.

121222200000212 is a deficient number, since it is larger than the sum of its proper divisors (91195413277504).

121222200000212 is a wasteful number, since it uses less digits than its factorization.

121222200000212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39823325338 (or 39823325336 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 121222200000212 its reverse (212000002222121), we get a palindrome (333222202222333).

The spelling of 121222200000212 in words is "one hundred twenty-one trillion, two hundred twenty-two billion, two hundred million, two hundred twelve", and thus it is an aban number.