22242051 has 24 divisors (see below), whose sum is σ = 35411376. Its totient is φ = 13366080.

The previous prime is 22242047. The next prime is 22242061. The reversal of 22242051 is 15024222.

It is not a de Polignac number, because 22242051 - 2² = 22242047 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22242061) 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 23 ways as a sum of consecutive naturals, for example, 2821 + ... + 7241.

It is an arithmetic number, because the mean of its divisors is an integer number (1475474).

Almost surely, 2^22242051 is an apocalyptic number.

22242051 is a deficient number, since it is larger than the sum of its proper divisors (13169325).

22242051 is a wasteful number, since it uses less digits than its factorization.

22242051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4483 (or 4480 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 22242051 is about 4716.1478984442. The cubic root of 22242051 is about 281.2278181024.

Adding to 22242051 its reverse (15024222), we get a palindrome (37266273).

The spelling of 22242051 in words is "twenty-two million, two hundred forty-two thousand, fifty-one".