22142055 has 32 divisors (see below), whose sum is σ = 38384640. Its totient is φ = 10834560.

The previous prime is 22142047. The next prime is 22142059. The reversal of 22142055 is 55024122.

It is a happy number.

It is not a de Polignac number, because 22142055 - 2³ = 22142047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22142059) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52636 + ... + 53054.

It is an arithmetic number, because the mean of its divisors is an integer number (1199520).

Almost surely, 2^22142055 is an apocalyptic number.

22142055 is a deficient number, since it is larger than the sum of its proper divisors (16242585).

22142055 is a wasteful number, since it uses less digits than its factorization.

22142055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 22142055 is about 4705.5345073647. The cubic root of 22142055 is about 280.8057361390.

Adding to 22142055 its reverse (55024122), we get a palindrome (77166177).

The spelling of 22142055 in words is "twenty-two million, one hundred forty-two thousand, fifty-five".