22245225461 has 4 divisors (see below), whose sum is σ = 22247223372. Its totient is φ = 22243227552.

The previous prime is 22245225451. The next prime is 22245225463. The reversal of 22245225461 is 16452254222.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11536908100 + 10708317361 = 107410^2 + 103481^2 .

It is a cyclic number.

It is not a de Polignac number, because 22245225461 - 2⁶ = 22245225397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22245225463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 982160 + ... + 1004553.

It is an arithmetic number, because the mean of its divisors is an integer number (5561805843).

Almost surely, 2^22245225461 is an apocalyptic number.

It is an amenable number.

22245225461 is a deficient number, since it is larger than the sum of its proper divisors (1997911).

22245225461 is a wasteful number, since it uses less digits than its factorization.

22245225461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1997910.

The product of its digits is 76800, while the sum is 35.

Adding to 22245225461 its reverse (16452254222), we get a palindrome (38697479683).

The spelling of 22245225461 in words is "twenty-two billion, two hundred forty-five million, two hundred twenty-five thousand, four hundred sixty-one".