65522250122 has 24 divisors (see below), whose sum is σ = 114754703940. Its totient is φ = 27976562880.

The previous prime is 65522250107. The next prime is 65522250151. The reversal of 65522250122 is 22105222556.

It can be written as a sum of positive squares in 2 ways, for example, as 56967665041 + 8554585081 = 238679^2 + 92491^2 .

It is a super-2 number, since 2×65522250122² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1216379 + ... + 1269102.

Almost surely, 2^65522250122 is an apocalyptic number.

65522250122 is a deficient number, since it is larger than the sum of its proper divisors (49232453818).

65522250122 is a wasteful number, since it uses less digits than its factorization.

65522250122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2485766 (or 2485759 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 32.

Adding to 65522250122 its reverse (22105222556), we get a palindrome (87627472678).

The spelling of 65522250122 in words is "sixty-five billion, five hundred twenty-two million, two hundred fifty thousand, one hundred twenty-two".