22022101 has 2 divisors, whose sum is σ = 22022102. Its totient is φ = 22022100.

The previous prime is 22022093. The next prime is 22022111. The reversal of 22022101 is 10122022.

It is an a-pointer prime, because the next prime (22022111) can be obtained adding 22022101 to its sum of digits (10).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16851025 + 5171076 = 4105^2 + 2274^2 .

It is a cyclic number.

It is not a de Polignac number, because 22022101 - 2³ = 22022093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22022111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11011050 + 11011051.

It is an arithmetic number, because the mean of its divisors is an integer number (11011051).

Almost surely, 2^22022101 is an apocalyptic number.

It is an amenable number.

22022101 is a deficient number, since it is larger than the sum of its proper divisors (1).

22022101 is an equidigital number, since it uses as much as digits as its factorization.

22022101 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 10.

The square root of 22022101 is about 4692.7711429389. The cubic root of 22022101 is about 280.2977317707.

Adding to 22022101 its reverse (10122022), we get a palindrome (32144123).

It can be divided in two parts, 22022 and 101, that multiplied together give a palindrome (2224222).

The spelling of 22022101 in words is "twenty-two million, twenty-two thousand, one hundred one".