201202120000221 has 4 divisors (see below), whose sum is σ = 268269493333632. Its totient is φ = 134134746666812.

The previous prime is 201202120000181. The next prime is 201202120000223. The reversal of 201202120000221 is 122000021202102.

201202120000221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 201202120000221 - 2⁷ = 201202120000093 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201202120000221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201202120000223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33533686666701 + ... + 33533686666706.

It is an arithmetic number, because the mean of its divisors is an integer number (67067373333408).

Almost surely, 2^{201202120000221} is an apocalyptic number.

It is an amenable number.

201202120000221 is a deficient number, since it is larger than the sum of its proper divisors (67067373333411).

201202120000221 is an equidigital number, since it uses as much as digits as its factorization.

201202120000221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67067373333410.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 201202120000221 its reverse (122000021202102), we get a palindrome (323202141202323).

The spelling of 201202120000221 in words is "two hundred one trillion, two hundred two billion, one hundred twenty million, two hundred twenty-one", and thus it is an aban number.