202220221202221 has 16 divisors (see below), whose sum is σ = 214541239809600. Its totient is φ = 190072897747200.

The previous prime is 202220221202203. The next prime is 202220221202249. The reversal of 202220221202221 is 122202122022202.

It is a cyclic number.

It is not a de Polignac number, because 202220221202221 - 2²³ = 202220212813613 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202220221202192 and 202220221202201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202220221202281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80854735 + ... + 83318236.

It is an arithmetic number, because the mean of its divisors is an integer number (13408827488100).

Almost surely, 2^{202220221202221} is an apocalyptic number.

It is an amenable number.

202220221202221 is a deficient number, since it is larger than the sum of its proper divisors (12321018607379).

202220221202221 is a wasteful number, since it uses less digits than its factorization.

202220221202221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164173500.

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 202220221202221 its reverse (122202122022202), we get a palindrome (324422343224423).

The spelling of 202220221202221 in words is "two hundred two trillion, two hundred twenty billion, two hundred twenty-one million, two hundred two thousand, two hundred twenty-one".