22122745 has 8 divisors (see below), whose sum is σ = 27944640. Its totient is φ = 16766640.

The previous prime is 22122743. The next prime is 22122767. The reversal of 22122745 is 54722122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22122745 - 2¹ = 22122743 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22122743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116341 + ... + 116530.

It is an arithmetic number, because the mean of its divisors is an integer number (3493080).

Almost surely, 2^22122745 is an apocalyptic number.

It is an amenable number.

22122745 is a deficient number, since it is larger than the sum of its proper divisors (5821895).

22122745 is a wasteful number, since it uses less digits than its factorization.

22122745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232895.

The product of its digits is 2240, while the sum is 25.

The square root of 22122745 is about 4703.4822206531. The cubic root of 22122745 is about 280.7240825346.

Adding to 22122745 its reverse (54722122), we get a palindrome (76844867).

The spelling of 22122745 in words is "twenty-two million, one hundred twenty-two thousand, seven hundred forty-five".