202221020122201 has 4 divisors (see below), whose sum is σ = 212864231707600. Its totient is φ = 191577808536804.

The previous prime is 202221020122193. The next prime is 202221020122241. The reversal of 202221020122201 is 102221020122202.

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 202221020122201 - 2³ = 202221020122193 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 10643211585379 = 202221020122201 / (2 + 0 + 2 + 2 + 2 + 1 + 0 + 2 + 0 + 1 + 2 + 2 + 2 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202221020122241) 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, 5321605792671 + ... + 5321605792708.

It is an arithmetic number, because the mean of its divisors is an integer number (53216057926900).

Almost surely, 2^{202221020122201} is an apocalyptic number.

It is an amenable number.

202221020122201 is a deficient number, since it is larger than the sum of its proper divisors (10643211585399).

202221020122201 is a wasteful number, since it uses less digits than its factorization.

202221020122201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10643211585398.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 202221020122201 its reverse (102221020122202), we get a palindrome (304442040244403).

Subtracting from 202221020122201 its reverse (102221020122202), we obtain a palindrome (99999999999999).

The spelling of 202221020122201 in words is "two hundred two trillion, two hundred twenty-one billion, twenty million, one hundred twenty-two thousand, two hundred one".