202220111201201 has 4 divisors (see below), whose sum is σ = 202238730134004. Its totient is φ = 202201492268400.

The previous prime is 202220111201149. The next prime is 202220111201219. The reversal of 202220111201201 is 102102111022202.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 124876177389601 + 77343933811600 = 11174801^2 + 8794540^2 .

It is a cyclic number.

It is not a de Polignac number, because 202220111201201 - 2³⁰ = 202219037459377 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 202220111201201.

It is not an unprimeable number, because it can be changed into a prime (202220111201221) 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, 9309450110 + ... + 9309471831.

It is an arithmetic number, because the mean of its divisors is an integer number (50559682533501).

Almost surely, 2^{202220111201201} is an apocalyptic number.

It is an amenable number.

202220111201201 is a deficient number, since it is larger than the sum of its proper divisors (18618932803).

202220111201201 is a wasteful number, since it uses less digits than its factorization.

202220111201201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18618932802.

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

Adding to 202220111201201 its reverse (102102111022202), we get a palindrome (304322222223403).

The spelling of 202220111201201 in words is "two hundred two trillion, two hundred twenty billion, one hundred eleven million, two hundred one thousand, two hundred one".