121210222221212 has 24 divisors (see below), whose sum is σ = 224595751099104. Its totient is φ = 57040018394112.

The previous prime is 121210222221173. The next prime is 121210222221241. The reversal of 121210222221212 is 212122222012121.

121210222221212 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 78881108 + ... + 80403044.

It is an arithmetic number, because the mean of its divisors is an integer number (9358156295796).

Almost surely, 2^{121210222221212} is an apocalyptic number.

It is an amenable number.

121210222221212 is a deficient number, since it is larger than the sum of its proper divisors (103385528877892).

121210222221212 is a wasteful number, since it uses less digits than its factorization.

121210222221212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2693165 (or 2693163 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 121210222221212 its reverse (212122222012121), we get a palindrome (333332444233333).

The spelling of 121210222221212 in words is "one hundred twenty-one trillion, two hundred ten billion, two hundred twenty-two million, two hundred twenty-one thousand, two hundred twelve".