122207645 has 16 divisors (see below), whose sum is σ = 177458688. Its totient is φ = 78869760.

The previous prime is 122207641. The next prime is 122207647. The reversal of 122207645 is 546702221.

It is a happy number.

It is not a de Polignac number, because 122207645 - 2² = 122207641 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122207641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102101 + ... + 103290.

It is an arithmetic number, because the mean of its divisors is an integer number (11091168).

Almost surely, 2^122207645 is an apocalyptic number.

It is an amenable number.

122207645 is a deficient number, since it is larger than the sum of its proper divisors (55251043).

122207645 is a wasteful number, since it uses less digits than its factorization.

122207645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205420.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 122207645 is about 11054.7566685115. The cubic root of 122207645 is about 496.2487871856.

Adding to 122207645 its reverse (546702221), we get a palindrome (668909866).

The spelling of 122207645 in words is "one hundred twenty-two million, two hundred seven thousand, six hundred forty-five".