21132222230 has 32 divisors (see below), whose sum is σ = 43663539456. Its totient is φ = 7213410144.

The previous prime is 21132222227. The next prime is 21132222299. The reversal of 21132222230 is 3222223112.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 649064 + ... + 680843.

It is an arithmetic number, because the mean of its divisors is an integer number (1364485608).

Almost surely, 2^21132222230 is an apocalyptic number.

21132222230 is an abundant number, since it is smaller than the sum of its proper divisors (22531317226).

21132222230 is a wasteful number, since it uses less digits than its factorization.

21132222230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1330148.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 21132222230 its reverse (3222223112), we get a palindrome (24354445342).

The spelling of 21132222230 in words is "twenty-one billion, one hundred thirty-two million, two hundred twenty-two thousand, two hundred thirty".