220202021221201 has 2 divisors, whose sum is σ = 220202021221202. Its totient is φ = 220202021221200.

The previous prime is 220202021221159. The next prime is 220202021221223. The reversal of 220202021221201 is 102122120202022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 218022913828801 + 2179107392400 = 14765599^2 + 1476180^2 .

It is a cyclic number.

It is not a de Polignac number, because 220202021221201 - 2²¹ = 220202019124049 is a prime.

It is not a weakly prime, because it can be changed into another prime (220202021221001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110101010610600 + 110101010610601.

It is an arithmetic number, because the mean of its divisors is an integer number (110101010610601).

Almost surely, 2^{220202021221201} is an apocalyptic number.

It is an amenable number.

220202021221201 is a deficient number, since it is larger than the sum of its proper divisors (1).

220202021221201 is an equidigital number, since it uses as much as digits as its factorization.

220202021221201 is an odious number, because the sum of its binary digits is odd.

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

Adding to 220202021221201 its reverse (102122120202022), we get a palindrome (322324141423223).

The spelling of 220202021221201 in words is "two hundred twenty trillion, two hundred two billion, twenty-one million, two hundred twenty-one thousand, two hundred one".