202221020021201 has 2 divisors, whose sum is σ = 202221020021202. Its totient is φ = 202221020021200.

The previous prime is 202221020021177. The next prime is 202221020021231. The reversal of 202221020021201 is 102120020122202.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 201994587750400 + 226432270801 = 14212480^2 + 475849^2 .

It is a cyclic number.

It is not a de Polignac number, because 202221020021201 - 2¹⁰ = 202221020020177 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 202221020021201.

It is not a weakly prime, because it can be changed into another prime (202221020021231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101110510010600 + 101110510010601.

It is an arithmetic number, because the mean of its divisors is an integer number (101110510010601).

Almost surely, 2^{202221020021201} is an apocalyptic number.

It is an amenable number.

202221020021201 is a deficient number, since it is larger than the sum of its proper divisors (1).

202221020021201 is an equidigital number, since it uses as much as digits as its factorization.

202221020021201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 202221020021201 its reverse (102120020122202), we get a palindrome (304341040143403).

The spelling of 202221020021201 in words is "two hundred two trillion, two hundred twenty-one billion, twenty million, twenty-one thousand, two hundred one".