21132233330 has 16 divisors (see below), whose sum is σ = 40964021784. Its totient is φ = 7802670720.

The previous prime is 21132233267. The next prime is 21132233383. The reversal of 21132233330 is 3333223112.

It can be written as a sum of positive squares in 4 ways, for example, as 7872480529 + 13259752801 = 88727^2 + 115151^2 .

It is a junction number, because it is equal to n+sod(n) for n = 21132233296 and 21132233305.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81277691 + ... + 81277950.

Almost surely, 2^21132233330 is an apocalyptic number.

21132233330 is a deficient number, since it is larger than the sum of its proper divisors (19831788454).

21132233330 is a wasteful number, since it uses less digits than its factorization.

21132233330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162555661.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 21132233330 its reverse (3333223112), we get a palindrome (24465456442).

The spelling of 21132233330 in words is "twenty-one billion, one hundred thirty-two million, two hundred thirty-three thousand, three hundred thirty".