201120221121212 has 12 divisors (see below), whose sum is σ = 354731728592640. Its totient is φ = 99768298666176.

The previous prime is 201120221121199. The next prime is 201120221121221. The reversal of 201120221121212 is 212121122021102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197952973037 + ... + 197952974052.

It is an arithmetic number, because the mean of its divisors is an integer number (29560977382720).

Almost surely, 2^{201120221121212} is an apocalyptic number.

It is an amenable number.

201120221121212 is a deficient number, since it is larger than the sum of its proper divisors (153611507471428).

201120221121212 is a wasteful number, since it uses less digits than its factorization.

201120221121212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395905947220 (or 395905947218 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 201120221121212 its reverse (212121122021102), we get a palindrome (413241343142314).

The spelling of 201120221121212 in words is "two hundred one trillion, one hundred twenty billion, two hundred twenty-one million, one hundred twenty-one thousand, two hundred twelve".