121222201121212 has 6 divisors (see below), whose sum is σ = 212138851962128. Its totient is φ = 60611100560604.

The previous prime is 121222201121089. The next prime is 121222201121261. The reversal of 121222201121212 is 212121102222121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15152775140148 + ... + 15152775140155.

Almost surely, 2^{121222201121212} is an apocalyptic number.

It is an amenable number.

121222201121212 is a deficient number, since it is larger than the sum of its proper divisors (90916650840916).

121222201121212 is a wasteful number, since it uses less digits than its factorization.

121222201121212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30305550280307 (or 30305550280305 counting only the distinct ones).

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

Adding to 121222201121212 its reverse (212121102222121), we get a palindrome (333343303343333).

The spelling of 121222201121212 in words is "one hundred twenty-one trillion, two hundred twenty-two billion, two hundred one million, one hundred twenty-one thousand, two hundred twelve".