201121000221212 has 48 divisors (see below), whose sum is σ = 383760886813920. Its totient is φ = 91855309658112.

The previous prime is 201121000221199. The next prime is 201121000221221. The reversal of 201121000221212 is 212122000121102.

201121000221212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (17).

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, 218594537 + ... + 219512672.

It is an arithmetic number, because the mean of its divisors is an integer number (7995018475290).

Almost surely, 2^{201121000221212} is an apocalyptic number.

It is an amenable number.

201121000221212 is a deficient number, since it is larger than the sum of its proper divisors (182639886592708).

201121000221212 is a wasteful number, since it uses less digits than its factorization.

201121000221212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438107430 (or 438107428 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 201121000221212 its reverse (212122000121102), we get a palindrome (413243000342314).

The spelling of 201121000221212 in words is "two hundred one trillion, one hundred twenty-one billion, two hundred twenty-one thousand, two hundred twelve".