511223222032 has 10 divisors (see below), whose sum is σ = 990494992718. Its totient is φ = 255611611008.

The previous prime is 511223222023. The next prime is 511223222047. The reversal of 511223222032 is 230222322115.

It can be written as a sum of positive squares in only one way, i.e., 492332368896 + 18890853136 = 701664^2 + 137444^2 .

It is a super-2 number, since 2×511223222032² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 511223221988 and 511223222006.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15975725673 + ... + 15975725704.

Almost surely, 2^511223222032 is an apocalyptic number.

It is an amenable number.

511223222032 is a deficient number, since it is larger than the sum of its proper divisors (479271770686).

511223222032 is a wasteful number, since it uses less digits than its factorization.

511223222032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31951451385 (or 31951451379 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 511223222032 its reverse (230222322115), we get a palindrome (741445544147).

The spelling of 511223222032 in words is "five hundred eleven billion, two hundred twenty-three million, two hundred twenty-two thousand, thirty-two".