201201120121212 has 72 divisors (see below), whose sum is σ = 523502686027776. Its totient is φ = 65123230634784.

The previous prime is 201201120121207. The next prime is 201201120121333. The reversal of 201201120121212 is 212121021102102.

201201120121212 is a `hidden beast` number, since 201 + 20 + 11 + 201 + 21 + 212 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 467947288 + ... + 468377055.

Almost surely, 2^{201201120121212} is an apocalyptic number.

It is an amenable number.

201201120121212 is an abundant number, since it is smaller than the sum of its proper divisors (322301565906564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201201120121212 is a wasteful number, since it uses less digits than its factorization.

201201120121212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 936324527 (or 936324522 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 201201120121212 its reverse (212121021102102), we get a palindrome (413322141223314).

The spelling of 201201120121212 in words is "two hundred one trillion, two hundred one billion, one hundred twenty million, one hundred twenty-one thousand, two hundred twelve".