22201211122001 has 2 divisors, whose sum is σ = 22201211122002. Its totient is φ = 22201211122000.

The previous prime is 22201211121997. The next prime is 22201211122019. The reversal of 22201211122001 is 10022111210222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21613805374225 + 587405747776 = 4649065^2 + 766424^2 .

It is a cyclic number.

It is not a de Polignac number, because 22201211122001 - 2² = 22201211121997 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 (22201211122031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11100605561000 + 11100605561001.

It is an arithmetic number, because the mean of its divisors is an integer number (11100605561001).

Almost surely, 2^{22201211122001} is an apocalyptic number.

It is an amenable number.

22201211122001 is a deficient number, since it is larger than the sum of its proper divisors (1).

22201211122001 is an equidigital number, since it uses as much as digits as its factorization.

22201211122001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 22201211122001 its reverse (10022111210222), we get a palindrome (32223322332223).

The spelling of 22201211122001 in words is "twenty-two trillion, two hundred one billion, two hundred eleven million, one hundred twenty-two thousand, one".