201121122212212 has 48 divisors (see below), whose sum is σ = 370887408460800. Its totient is φ = 95334921732960.

The previous prime is 201121122212173. The next prime is 201121122212267. The reversal of 201121122212212 is 212212221121102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124633714 + ... + 126237097.

It is an arithmetic number, because the mean of its divisors is an integer number (7726821009600).

Almost surely, 2^{201121122212212} is an apocalyptic number.

It is an amenable number.

201121122212212 is a deficient number, since it is larger than the sum of its proper divisors (169766286248588).

201121122212212 is a wasteful number, since it uses less digits than its factorization.

201121122212212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250870996 (or 250870994 counting only the distinct ones).

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

Adding to 201121122212212 its reverse (212212221121102), we get a palindrome (413333343333314).

The spelling of 201121122212212 in words is "two hundred one trillion, one hundred twenty-one billion, one hundred twenty-two million, two hundred twelve thousand, two hundred twelve".