22210145 has 16 divisors (see below), whose sum is σ = 28712640. Its totient is φ = 16438464.

The previous prime is 22210129. The next prime is 22210147. The reversal of 22210145 is 54101222.

It is a cyclic number.

It is not a de Polignac number, because 22210145 - 2⁴ = 22210129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22210147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1367 + ... + 6803.

It is an arithmetic number, because the mean of its divisors is an integer number (1794540).

Almost surely, 2^22210145 is an apocalyptic number.

It is an amenable number.

22210145 is a deficient number, since it is larger than the sum of its proper divisors (6502495).

22210145 is a wasteful number, since it uses less digits than its factorization.

22210145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5504.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 22210145 is about 4712.7640509578. The cubic root of 22210145 is about 281.0932809191.

Adding to 22210145 its reverse (54101222), we get a palindrome (76311367).

The spelling of 22210145 in words is "twenty-two million, two hundred ten thousand, one hundred forty-five".