213421140332244 has 96 divisors (see below), whose sum is σ = 609734285677440. Its totient is φ = 64140879366144.

The previous prime is 213421140332243. The next prime is 213421140332273. The reversal of 213421140332244 is 442233041124312.

213421140332244 is a `hidden beast` number, since 2 + 1 + 3 + 4 + 2 + 1 + 1 + 403 + 3 + 2 + 244 = 666.

213421140332244 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 213421140332199 and 213421140332208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213421140332243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1767490317 + ... + 1767611060.

It is an arithmetic number, because the mean of its divisors is an integer number (6351398809140).

Almost surely, 2^{213421140332244} is an apocalyptic number.

It is an amenable number.

213421140332244 is an abundant number, since it is smaller than the sum of its proper divisors (396313145345196).

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

213421140332244 is a wasteful number, since it uses less digits than its factorization.

213421140332244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3535101446 (or 3535101438 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 36.

Adding to 213421140332244 its reverse (442233041124312), we get a palindrome (655654181456556).

The spelling of 213421140332244 in words is "two hundred thirteen trillion, four hundred twenty-one billion, one hundred forty million, three hundred thirty-two thousand, two hundred forty-four".