22012002401 has 2 divisors, whose sum is σ = 22012002402. Its totient is φ = 22012002400.

The previous prime is 22012002361. The next prime is 22012002451. The reversal of 22012002401 is 10420021022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21645471376 + 366531025 = 147124^2 + 19145^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22012002401 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 (22012002451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11006001200 + 11006001201.

It is an arithmetic number, because the mean of its divisors is an integer number (11006001201).

Almost surely, 2^22012002401 is an apocalyptic number.

It is an amenable number.

22012002401 is a deficient number, since it is larger than the sum of its proper divisors (1).

22012002401 is an equidigital number, since it uses as much as digits as its factorization.

22012002401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 22012002401 its reverse (10420021022), we get a palindrome (32432023423).

The spelling of 22012002401 in words is "twenty-two billion, twelve million, two thousand, four hundred one".