21333462234 has 16 divisors (see below), whose sum is σ = 48762199488. Its totient is φ = 6095274912.

The previous prime is 21333462223. The next prime is 21333462263. The reversal of 21333462234 is 43226433312.

It is a super-2 number, since 2×21333462234² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21333462195 and 21333462204.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 253969747 + ... + 253969830.

It is an arithmetic number, because the mean of its divisors is an integer number (3047637468).

Almost surely, 2^21333462234 is an apocalyptic number.

21333462234 is an abundant number, since it is smaller than the sum of its proper divisors (27428737254).

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

21333462234 is a wasteful number, since it uses less digits than its factorization.

21333462234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507939589.

The product of its digits is 62208, while the sum is 33.

Adding to 21333462234 its reverse (43226433312), we get a palindrome (64559895546).

The spelling of 21333462234 in words is "twenty-one billion, three hundred thirty-three million, four hundred sixty-two thousand, two hundred thirty-four".