201001210221212 has 12 divisors (see below), whose sum is σ = 351755728467696. Its totient is φ = 100499573516160.

The previous prime is 201001210221193. The next prime is 201001210221241. The reversal of 201001210221212 is 212122012100102.

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, 257460128 + ... + 258239655.

It is an arithmetic number, because the mean of its divisors is an integer number (29312977372308).

Almost surely, 2^{201001210221212} is an apocalyptic number.

It is an amenable number.

201001210221212 is a deficient number, since it is larger than the sum of its proper divisors (150754518246484).

201001210221212 is a wasteful number, since it uses less digits than its factorization.

201001210221212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515797228 (or 515797226 counting only the distinct ones).

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

Adding to 201001210221212 its reverse (212122012100102), we get a palindrome (413123222321314).

The spelling of 201001210221212 in words is "two hundred one trillion, one billion, two hundred ten million, two hundred twenty-one thousand, two hundred twelve".