201212201201221 has 8 divisors (see below), whose sum is σ = 236171850058880. Its totient is φ = 167806314515088.

The previous prime is 201212201201189. The next prime is 201212201201311. The reversal of 201212201201221 is 122102102212102.

201212201201221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 201212201201221 - 2⁵ = 201212201201189 is a prime.

It is a super-3 number, since 3×201212201201221³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201212201001221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 388440542601 + ... + 388440543118.

It is an arithmetic number, because the mean of its divisors is an integer number (29521481257360).

Almost surely, 2^{201212201201221} is an apocalyptic number.

It is an amenable number.

201212201201221 is a deficient number, since it is larger than the sum of its proper divisors (34959648857659).

201212201201221 is an equidigital number, since it uses as much as digits as its factorization.

201212201201221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 776881085763.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 201212201201221 its reverse (122102102212102), we get a palindrome (323314303413323).

The spelling of 201212201201221 in words is "two hundred one trillion, two hundred twelve billion, two hundred one million, two hundred one thousand, two hundred twenty-one".