22021200010001 has 2 divisors, whose sum is σ = 22021200010002. Its totient is φ = 22021200010000.

The previous prime is 22021200009929. The next prime is 22021200010003. The reversal of 22021200010001 is 10001000212022.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11250489930625 + 10770710079376 = 3354175^2 + 3281876^2 .

It is a cyclic number.

It is not a de Polignac number, because 22021200010001 - 2³⁸ = 21746322103057 is a prime.

Together with 22021200010003, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22021200010003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11010600005000 + 11010600005001.

It is an arithmetic number, because the mean of its divisors is an integer number (11010600005001).

Almost surely, 2^{22021200010001} is an apocalyptic number.

It is an amenable number.

22021200010001 is a deficient number, since it is larger than the sum of its proper divisors (1).

22021200010001 is an equidigital number, since it uses as much as digits as its factorization.

22021200010001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 22021200010001 its reverse (10001000212022), we get a palindrome (32022200222023).

The spelling of 22021200010001 in words is "twenty-two trillion, twenty-one billion, two hundred million, ten thousand, one".