121202222212 has 24 divisors (see below), whose sum is σ = 214290440000. Its totient is φ = 59977082016.

The previous prime is 121202222203. The next prime is 121202222257. The reversal of 121202222212 is 212222202121.

It is a self number, because there is not a number n which added to its sum of digits gives 121202222212.

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, 613414 + ... + 786562.

Almost surely, 2^121202222212 is an apocalyptic number.

It is an amenable number.

121202222212 is a deficient number, since it is larger than the sum of its proper divisors (93088217788).

121202222212 is a wasteful number, since it uses less digits than its factorization.

121202222212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174955 (or 174953 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 121202222212 its reverse (212222202121), we get a palindrome (333424424333).

The spelling of 121202222212 in words is "one hundred twenty-one billion, two hundred two million, two hundred twenty-two thousand, two hundred twelve".