22201929 has 6 divisors (see below), whose sum is σ = 32069466. Its totient is φ = 14801280.

The previous prime is 22201909. The next prime is 22201931. The reversal of 22201929 is 92910222.

It can be written as a sum of positive squares in only one way, i.e., 12089529 + 10112400 = 3477^2 + 3180^2 .

It is not a de Polignac number, because 22201929 - 2⁷ = 22201801 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22201909) 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 5 ways as a sum of consecutive naturals, for example, 1233432 + ... + 1233449.

It is an arithmetic number, because the mean of its divisors is an integer number (5344911).

Almost surely, 2^22201929 is an apocalyptic number.

It is an amenable number.

22201929 is a deficient number, since it is larger than the sum of its proper divisors (9867537).

22201929 is a wasteful number, since it uses less digits than its factorization.

22201929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2466887 (or 2466884 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 22201929 is about 4711.8922950339. The cubic root of 22201929 is about 281.0586158711.

The spelling of 22201929 in words is "twenty-two million, two hundred one thousand, nine hundred twenty-nine".