20020002212281 has 2 divisors, whose sum is σ = 20020002212282. Its totient is φ = 20020002212280.

The previous prime is 20020002212279. The next prime is 20020002212293. The reversal of 20020002212281 is 18221220002002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15038178212281 + 4981824000000 = 3877909^2 + 2232000^2 .

It is a cyclic number.

It is not a de Polignac number, because 20020002212281 - 2¹ = 20020002212279 is a prime.

It is a super-2 number, since 2×20020002212281² (a number of 27 digits) contains 22 as substring.

Together with 20020002212279, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (20020002212081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10010001106140 + 10010001106141.

It is an arithmetic number, because the mean of its divisors is an integer number (10010001106141).

Almost surely, 2^{20020002212281} is an apocalyptic number.

It is an amenable number.

20020002212281 is a deficient number, since it is larger than the sum of its proper divisors (1).

20020002212281 is an equidigital number, since it uses as much as digits as its factorization.

20020002212281 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.

Adding to 20020002212281 its reverse (18221220002002), we get a palindrome (38241222214283).

The spelling of 20020002212281 in words is "twenty trillion, twenty billion, two million, two hundred twelve thousand, two hundred eighty-one".