621362242234212 has 48 divisors (see below), whose sum is σ = 1460782462339200. Its totient is φ = 205561364666112.

The previous prime is 621362242234199. The next prime is 621362242234337. The reversal of 621362242234212 is 212432242263126.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 190806712 + ... + 194035887.

It is an arithmetic number, because the mean of its divisors is an integer number (30432967965400).

Almost surely, 2^{621362242234212} is an apocalyptic number.

It is an amenable number.

621362242234212 is an abundant number, since it is smaller than the sum of its proper divisors (839420220104988).

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

621362242234212 is a wasteful number, since it uses less digits than its factorization.

621362242234212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384843620 (or 384843618 counting only the distinct ones).

The product of its digits is 663552, while the sum is 42.

Adding to 621362242234212 its reverse (212432242263126), we get a palindrome (833794484497338).

The spelling of 621362242234212 in words is "six hundred twenty-one trillion, three hundred sixty-two billion, two hundred forty-two million, two hundred thirty-four thousand, two hundred twelve".