220202112281 has 2 divisors, whose sum is σ = 220202112282. Its totient is φ = 220202112280.

The previous prime is 220202112187. The next prime is 220202112287. The reversal of 220202112281 is 182211202022.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 220167408400 + 34703881 = 469220^2 + 5891^2 .

It is a cyclic number.

It is not a de Polignac number, because 220202112281 - 2²² = 220197917977 is a prime.

It is a super-2 number, since 2×220202112281² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (220202112287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110101056140 + 110101056141.

It is an arithmetic number, because the mean of its divisors is an integer number (110101056141).

Almost surely, 2^220202112281 is an apocalyptic number.

It is an amenable number.

220202112281 is a deficient number, since it is larger than the sum of its proper divisors (1).

220202112281 is an equidigital number, since it uses as much as digits as its factorization.

220202112281 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 23.

The spelling of 220202112281 in words is "two hundred twenty billion, two hundred two million, one hundred twelve thousand, two hundred eighty-one".