220222210081 has 2 divisors, whose sum is σ = 220222210082. Its totient is φ = 220222210080.

The previous prime is 220222210079. The next prime is 220222210093. The reversal of 220222210081 is 180012222022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 139248385600 + 80973824481 = 373160^2 + 284559^2 .

It is a cyclic number.

It is not a de Polignac number, because 220222210081 - 2¹ = 220222210079 is a prime.

It is a super-2 number, since 2×220222210081² (a number of 23 digits) contains 22 as substring.

Together with 220222210079, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (220222010081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110111105040 + 110111105041.

It is an arithmetic number, because the mean of its divisors is an integer number (110111105041).

Almost surely, 2^220222210081 is an apocalyptic number.

It is an amenable number.

220222210081 is a deficient number, since it is larger than the sum of its proper divisors (1).

220222210081 is an equidigital number, since it uses as much as digits as its factorization.

220222210081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 512, while the sum is 22.

The spelling of 220222210081 in words is "two hundred twenty billion, two hundred twenty-two million, two hundred ten thousand, eighty-one".