10222022081 has 2 divisors, whose sum is σ = 10222022082. Its totient is φ = 10222022080.

The previous prime is 10222022077. The next prime is 10222022117. The reversal of 10222022081 is 18022022201.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9809119681 + 412902400 = 99041^2 + 20320^2 .

It is a cyclic number.

It is not a de Polignac number, because 10222022081 - 2² = 10222022077 is a prime.

It is a super-2 number, since 2×10222022081² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10222022581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5111011040 + 5111011041.

It is an arithmetic number, because the mean of its divisors is an integer number (5111011041).

Almost surely, 2^10222022081 is an apocalyptic number.

It is an amenable number.

10222022081 is a deficient number, since it is larger than the sum of its proper divisors (1).

10222022081 is an equidigital number, since it uses as much as digits as its factorization.

10222022081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 10222022081 its reverse (18022022201), we get a palindrome (28244044282).

The spelling of 10222022081 in words is "ten billion, two hundred twenty-two million, twenty-two thousand, eighty-one".