21244334310 has 48 divisors (see below), whose sum is σ = 55327315680. Its totient is φ = 5655715200.

The previous prime is 21244334299. The next prime is 21244334347. The reversal of 21244334310 is 1343344212.

21244334310 is a `hidden beast` number, since 2 + 12 + 4 + 4 + 334 + 310 = 666.

It is a super-2 number, since 2×21244334310² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 142290 + ... + 250469.

It is an arithmetic number, because the mean of its divisors is an integer number (1152652410).

Almost surely, 2^21244334310 is an apocalyptic number.

21244334310 is an abundant number, since it is smaller than the sum of its proper divisors (34082981370).

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

21244334310 is a wasteful number, since it uses less digits than its factorization.

21244334310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393373 (or 393370 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 21244334310 its reverse (1343344212), we get a palindrome (22587678522).

It can be divided in two parts, 212443 and 34310, that added together give a triangular number (246753 = T₇₀₂).

The spelling of 21244334310 in words is "twenty-one billion, two hundred forty-four million, three hundred thirty-four thousand, three hundred ten".