511211500012 has 36 divisors (see below), whose sum is σ = 909631128280. Its totient is φ = 251385462720.

The previous prime is 511211500003. The next prime is 511211500013. The reversal of 511211500012 is 210005112115.

It is a super-2 number, since 2×511211500012² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (511211500013) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8216083 + ... + 8278069.

Almost surely, 2^511211500012 is an apocalyptic number.

It is an amenable number.

511211500012 is a deficient number, since it is larger than the sum of its proper divisors (398419628268).

511211500012 is a wasteful number, since it uses less digits than its factorization.

511211500012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62542 (or 62469 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 19.

Adding to 511211500012 its reverse (210005112115), we get a palindrome (721216612127).

The spelling of 511211500012 in words is "five hundred eleven billion, two hundred eleven million, five hundred thousand, twelve".