511045231421212 has 24 divisors (see below), whose sum is σ = 930590594047296. Its totient is φ = 245367361207488.

The previous prime is 511045231421201. The next prime is 511045231421213. The reversal of 511045231421212 is 212124132540115.

It is a super-2 number, since 2×511045231421212² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (511045231421213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25644572103 + ... + 25644592030.

It is an arithmetic number, because the mean of its divisors is an integer number (38774608085304).

Almost surely, 2^{511045231421212} is an apocalyptic number.

It is an amenable number.

511045231421212 is a deficient number, since it is larger than the sum of its proper divisors (419545362626084).

511045231421212 is a wasteful number, since it uses less digits than its factorization.

511045231421212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51289164237 (or 51289164235 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 34.

Adding to 511045231421212 its reverse (212124132540115), we get a palindrome (723169363961327).

The spelling of 511045231421212 in words is "five hundred eleven trillion, forty-five billion, two hundred thirty-one million, four hundred twenty-one thousand, two hundred twelve".