22021011137 has 2 divisors, whose sum is σ = 22021011138. Its totient is φ = 22021011136.

The previous prime is 22021011109. The next prime is 22021011157. The reversal of 22021011137 is 73111012022.

It is an a-pointer prime, because the next prime (22021011157) can be obtained adding 22021011137 to its sum of digits (20).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11706374416 + 10314636721 = 108196^2 + 101561^2 .

It is a cyclic number.

It is not a de Polignac number, because 22021011137 - 2⁶ = 22021011073 is a prime.

It is not a weakly prime, because it can be changed into another prime (22021011157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11010505568 + 11010505569.

It is an arithmetic number, because the mean of its divisors is an integer number (11010505569).

Almost surely, 2^22021011137 is an apocalyptic number.

It is an amenable number.

22021011137 is a deficient number, since it is larger than the sum of its proper divisors (1).

22021011137 is an equidigital number, since it uses as much as digits as its factorization.

22021011137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168, while the sum is 20.

Adding to 22021011137 its reverse (73111012022), we get a palindrome (95132023159).

The spelling of 22021011137 in words is "twenty-two billion, twenty-one million, eleven thousand, one hundred thirty-seven".