212563365212 has 48 divisors (see below), whose sum is σ = 423722880000. Its totient is φ = 92358509760.

The previous prime is 212563365169. The next prime is 212563365221.

212563365212 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1499789 + ... + 1635387.

It is an arithmetic number, because the mean of its divisors is an integer number (8827560000).

Almost surely, 2^212563365212 is an apocalyptic number.

212563365212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

212563365212 is a deficient number, since it is larger than the sum of its proper divisors (211159514788).

212563365212 is a wasteful number, since it uses less digits than its factorization.

212563365212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137186 (or 137184 counting only the distinct ones).

The product of its digits is 129600, while the sum is 38.

It can be divided in two parts, 212563 and 365212, that added together give a palindrome (577775).

The spelling of 212563365212 in words is "two hundred twelve billion, five hundred sixty-three million, three hundred sixty-five thousand, two hundred twelve".