21133214334 has 16 divisors (see below), whose sum is σ = 46962698640. Its totient is φ = 7044404760.

The previous prime is 21133214309. The next prime is 21133214353. The reversal of 21133214334 is 43341233112.

It is a happy number.

21133214334 is a `hidden beast` number, since 2 + 1 + 1 + 3 + 321 + 4 + 334 = 666.

21133214334 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×21133214334² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 21133214298 and 21133214307.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 195677857 + ... + 195677964.

It is an arithmetic number, because the mean of its divisors is an integer number (2935168665).

Almost surely, 2^21133214334 is an apocalyptic number.

21133214334 is an abundant number, since it is smaller than the sum of its proper divisors (25829484306).

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

21133214334 is a wasteful number, since it uses less digits than its factorization.

21133214334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391355832 (or 391355826 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

Adding to 21133214334 its reverse (43341233112), we get a palindrome (64474447446).

The spelling of 21133214334 in words is "twenty-one billion, one hundred thirty-three million, two hundred fourteen thousand, three hundred thirty-four".