22001111210201 has 2 divisors, whose sum is σ = 22001111210202. Its totient is φ = 22001111210200.

The previous prime is 22001111210189. The next prime is 22001111210231. The reversal of 22001111210201 is 10201211110022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20559658844176 + 1441452366025 = 4534276^2 + 1200605^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22001111210201 is a prime.

It is a super-2 number, since 2×22001111210201² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22001111210231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11000555605100 + 11000555605101.

It is an arithmetic number, because the mean of its divisors is an integer number (11000555605101).

Almost surely, 2^{22001111210201} is an apocalyptic number.

It is an amenable number.

22001111210201 is a deficient number, since it is larger than the sum of its proper divisors (1).

22001111210201 is an equidigital number, since it uses as much as digits as its factorization.

22001111210201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 22001111210201 its reverse (10201211110022), we get a palindrome (32202322320223).

The spelling of 22001111210201 in words is "twenty-two trillion, one billion, one hundred eleven million, two hundred ten thousand, two hundred one".