45442212122 has 8 divisors (see below), whose sum is σ = 68428545876. Its totient is φ = 22632696832.

The previous prime is 45442212113. The next prime is 45442212149. The reversal of 45442212122 is 22121224454.

It can be written as a sum of positive squares in 2 ways, for example, as 34673791681 + 10768420441 = 186209^2 + 103771^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44203973 + ... + 44205000.

Almost surely, 2^45442212122 is an apocalyptic number.

45442212122 is a deficient number, since it is larger than the sum of its proper divisors (22986333754).

45442212122 is a wasteful number, since it uses less digits than its factorization.

45442212122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88409232.

The product of its digits is 10240, while the sum is 29.

Adding to 45442212122 its reverse (22121224454), we get a palindrome (67563436576).

The spelling of 45442212122 in words is "forty-five billion, four hundred forty-two million, two hundred twelve thousand, one hundred twenty-two".