22202142 has 32 divisors (see below), whose sum is σ = 45771264. Its totient is φ = 7176000.

The previous prime is 22202137. The next prime is 22202209. The reversal of 22202142 is 24120222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36642 + ... + 37242.

It is an arithmetic number, because the mean of its divisors is an integer number (1430352).

Almost surely, 2^22202142 is an apocalyptic number.

22202142 is an abundant number, since it is smaller than the sum of its proper divisors (23569122).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22202142 is a wasteful number, since it uses less digits than its factorization.

22202142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 22202142 is about 4711.9148973639. The cubic root of 22202142 is about 281.0595146713.

Adding to 22202142 its reverse (24120222), we get a palindrome (46322364).

The spelling of 22202142 in words is "twenty-two million, two hundred two thousand, one hundred forty-two".