511212446212 has 12 divisors (see below), whose sum is σ = 963438841036. Its totient is φ = 235944205920.

The previous prime is 511212446207. The next prime is 511212446221. The reversal of 511212446212 is 212644212115.

It can be written as a sum of positive squares in 2 ways, for example, as 42855624256 + 468356821956 = 207016^2 + 684366^2 .

It is a super-2 number, since 2×511212446212² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4915504239 + ... + 4915504342.

Almost surely, 2^511212446212 is an apocalyptic number.

511212446212 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

511212446212 is a deficient number, since it is larger than the sum of its proper divisors (452226394824).

511212446212 is a wasteful number, since it uses less digits than its factorization.

511212446212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9831008598 (or 9831008596 counting only the distinct ones).

The product of its digits is 7680, while the sum is 31.

Adding to 511212446212 its reverse (212644212115), we get a palindrome (723856658327).

The spelling of 511212446212 in words is "five hundred eleven billion, two hundred twelve million, four hundred forty-six thousand, two hundred twelve".