20022033281 has 2 divisors, whose sum is σ = 20022033282. Its totient is φ = 20022033280.

The previous prime is 20022033263. The next prime is 20022033329. The reversal of 20022033281 is 18233022002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11959609600 + 8062423681 = 109360^2 + 89791^2 .

It is a cyclic number.

It is not a de Polignac number, because 20022033281 - 2⁶ = 20022033217 is a prime.

It is a super-2 number, since 2×20022033281² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20022033881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10011016640 + 10011016641.

It is an arithmetic number, because the mean of its divisors is an integer number (10011016641).

Almost surely, 2^20022033281 is an apocalyptic number.

It is an amenable number.

20022033281 is a deficient number, since it is larger than the sum of its proper divisors (1).

20022033281 is an equidigital number, since it uses as much as digits as its factorization.

20022033281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 20022033281 its reverse (18233022002), we get a palindrome (38255055283).

The spelling of 20022033281 in words is "twenty billion, twenty-two million, thirty-three thousand, two hundred eighty-one".