451211245212 has 48 divisors (see below), whose sum is σ = 1295786143232. Its totient is φ = 119000767680.

The previous prime is 451211245211. The next prime is 451211245241. The reversal of 451211245212 is 212542112154.

It is a self number, because there is not a number n which added to its sum of digits gives 451211245212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451211245211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 206597464 + ... + 206599647.

Almost surely, 2^451211245212 is an apocalyptic number.

451211245212 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

451211245212 is an abundant number, since it is smaller than the sum of its proper divisors (844574898020).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

451211245212 is a wasteful number, since it uses less digits than its factorization.

451211245212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413197138 (or 413197136 counting only the distinct ones).

The product of its digits is 6400, while the sum is 30.

Adding to 451211245212 its reverse (212542112154), we get a palindrome (663753357366).

The spelling of 451211245212 in words is "four hundred fifty-one billion, two hundred eleven million, two hundred forty-five thousand, two hundred twelve".