22012300361 has 2 divisors, whose sum is σ = 22012300362. Its totient is φ = 22012300360.

The previous prime is 22012300357. The next prime is 22012300381. The reversal of 22012300361 is 16300321022.

It is a happy number.

It is an a-pointer prime, because the next prime (22012300381) can be obtained adding 22012300361 to its sum of digits (20).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13581571600 + 8430728761 = 116540^2 + 91819^2 .

It is a cyclic number.

It is not a de Polignac number, because 22012300361 - 2² = 22012300357 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (22012300381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11006150180 + 11006150181.

It is an arithmetic number, because the mean of its divisors is an integer number (11006150181).

Almost surely, 2^22012300361 is an apocalyptic number.

It is an amenable number.

22012300361 is a deficient number, since it is larger than the sum of its proper divisors (1).

22012300361 is an equidigital number, since it uses as much as digits as its factorization.

22012300361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 22012300361 its reverse (16300321022), we get a palindrome (38312621383).

The spelling of 22012300361 in words is "twenty-two billion, twelve million, three hundred thousand, three hundred sixty-one".