201220002021201 has 4 divisors (see below), whose sum is σ = 268293336028272. Its totient is φ = 134146668014132.

The previous prime is 201220002021163. The next prime is 201220002021251. The reversal of 201220002021201 is 102120200022102.

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 201220002021201 - 2¹⁵ = 201220001988433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201220002021251) 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, 33536667003531 + ... + 33536667003536.

It is an arithmetic number, because the mean of its divisors is an integer number (67073334007068).

Almost surely, 2^{201220002021201} is an apocalyptic number.

It is an amenable number.

201220002021201 is a deficient number, since it is larger than the sum of its proper divisors (67073334007071).

201220002021201 is an equidigital number, since it uses as much as digits as its factorization.

201220002021201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67073334007070.

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

Adding to 201220002021201 its reverse (102120200022102), we get a palindrome (303340202043303).

The spelling of 201220002021201 in words is "two hundred one trillion, two hundred twenty billion, two million, twenty-one thousand, two hundred one".