22202156 has 24 divisors (see below), whose sum is σ = 40019280. Its totient is φ = 10771200.

The previous prime is 22202137. The next prime is 22202209. The reversal of 22202156 is 65120222.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54080 + ... + 54488.

It is an arithmetic number, because the mean of its divisors is an integer number (1667470).

Almost surely, 2^22202156 is an apocalyptic number.

It is an amenable number.

22202156 is a deficient number, since it is larger than the sum of its proper divisors (17817124).

22202156 is a wasteful number, since it uses less digits than its factorization.

22202156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785 (or 783 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 22202156 is about 4711.9163829593. The cubic root of 22202156 is about 281.0595737472.

Adding to 22202156 its reverse (65120222), we get a palindrome (87322378).

The spelling of 22202156 in words is "twenty-two million, two hundred two thousand, one hundred fifty-six".