22125777 has 8 divisors (see below), whose sum is σ = 29528160. Its totient is φ = 14736960.

The previous prime is 22125743. The next prime is 22125799. The reversal of 22125777 is 77752122.

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

It is not a de Polignac number, because 22125777 - 2¹¹ = 22123729 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (22125707) 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, 1374 + ... + 6792.

It is an arithmetic number, because the mean of its divisors is an integer number (3691020).

Almost surely, 2^22125777 is an apocalyptic number.

It is an amenable number.

22125777 is a deficient number, since it is larger than the sum of its proper divisors (7402383).

22125777 is a wasteful number, since it uses less digits than its factorization.

22125777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6783.

The product of its digits is 13720, while the sum is 33.

The square root of 22125777 is about 4703.8045239997. The cubic root of 22125777 is about 280.7369066896.

Adding to 22125777 its reverse (77752122), we get a palindrome (99877899).

The spelling of 22125777 in words is "twenty-two million, one hundred twenty-five thousand, seven hundred seventy-seven".