22129036 has 24 divisors (see below), whose sum is σ = 42789600. Its totient is φ = 9960192.

The previous prime is 22129027. The next prime is 22129039. The reversal of 22129036 is 63092122.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 22129036.

It is not an unprimeable number, because it can be changed into a prime (22129039) 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 in 7 ways as a sum of consecutive naturals, for example, 5511 + ... + 8638.

It is an arithmetic number, because the mean of its divisors is an integer number (1782900).

Almost surely, 2^22129036 is an apocalyptic number.

It is an amenable number.

22129036 is a deficient number, since it is larger than the sum of its proper divisors (20660564).

22129036 is a wasteful number, since it uses less digits than its factorization.

22129036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14193 (or 14191 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 22129036 is about 4704.1509329527. The cubic root of 22129036 is about 280.7506896581.

The spelling of 22129036 in words is "twenty-two million, one hundred twenty-nine thousand, thirty-six".