22185101 has 2 divisors, whose sum is σ = 22185102. Its totient is φ = 22185100.

The previous prime is 22185091. The next prime is 22185109. The reversal of 22185101 is 10158122.

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., 21855625 + 329476 = 4675^2 + 574^2 .

It is a cyclic number.

It is not a de Polignac number, because 22185101 - 2¹⁴ = 22168717 is a prime.

It is a Chen prime.

It is equal to p_1400168 and since 22185101 and 1400168 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22185109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11092550 + 11092551.

It is an arithmetic number, because the mean of its divisors is an integer number (11092551).

Almost surely, 2^22185101 is an apocalyptic number.

It is an amenable number.

22185101 is a deficient number, since it is larger than the sum of its proper divisors (1).

22185101 is an equidigital number, since it uses as much as digits as its factorization.

22185101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 160, while the sum is 20.

The square root of 22185101 is about 4710.1062620710. The cubic root of 22185101 is about 280.9875882614.

The spelling of 22185101 in words is "twenty-two million, one hundred eighty-five thousand, one hundred one".