22372205 has 4 divisors (see below), whose sum is σ = 26846652. Its totient is φ = 17897760.

The previous prime is 22372159. The next prime is 22372219. The reversal of 22372205 is 50227322.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50227322 = 2 ⋅25113661.

It can be written as a sum of positive squares in 2 ways, for example, as 15264649 + 7107556 = 3907^2 + 2666^2 .

It is not a de Polignac number, because 22372205 - 2¹² = 22368109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2237216 + ... + 2237225.

It is an arithmetic number, because the mean of its divisors is an integer number (6711663).

Almost surely, 2^22372205 is an apocalyptic number.

It is an amenable number.

22372205 is a deficient number, since it is larger than the sum of its proper divisors (4474447).

22372205 is an equidigital number, since it uses as much as digits as its factorization.

22372205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4474446.

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 22372205 is about 4729.9265321990. The cubic root of 22372205 is about 281.7753059831.

Adding to 22372205 its reverse (50227322), we get a palindrome (72599527).

The spelling of 22372205 in words is "twenty-two million, three hundred seventy-two thousand, two hundred five".