121211202122212 has 24 divisors (see below), whose sum is σ = 214121302915520. Its totient is φ = 60033976083360.

The previous prime is 121211202122177. The next prime is 121211202122233. The reversal of 121211202122212 is 212221202112121.

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, 34455714 + ... + 37810297.

Almost surely, 2^{121211202122212} is an apocalyptic number.

It is an amenable number.

121211202122212 is a deficient number, since it is larger than the sum of its proper divisors (92910100793308).

121211202122212 is a wasteful number, since it uses less digits than its factorization.

121211202122212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72269971 (or 72269969 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 121211202122212 its reverse (212221202112121), we get a palindrome (333432404234333).

The spelling of 121211202122212 in words is "one hundred twenty-one trillion, two hundred eleven billion, two hundred two million, one hundred twenty-two thousand, two hundred twelve".