21333131122 has 16 divisors (see below), whose sum is σ = 33890213592. Its totient is φ = 10036696320.

The previous prime is 21333131101. The next prime is 21333131153. The reversal of 21333131122 is 22113133312.

It can be written as a sum of positive squares in 4 ways, for example, as 20732832121 + 600299001 = 143989^2 + 24501^2 .

It is a junction number, because it is equal to n+sod(n) for n = 21333131093 and 21333131102.

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 7 ways as a sum of consecutive naturals, for example, 71248 + ... + 218500.

Almost surely, 2^21333131122 is an apocalyptic number.

21333131122 is a deficient number, since it is larger than the sum of its proper divisors (12557082470).

21333131122 is a wasteful number, since it uses less digits than its factorization.

21333131122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151533.

The product of its digits is 648, while the sum is 22.

Adding to 21333131122 its reverse (22113133312), we get a palindrome (43446264434).

The spelling of 21333131122 in words is "twenty-one billion, three hundred thirty-three million, one hundred thirty-one thousand, one hundred twenty-two".