21223202002130 has 8 divisors (see below), whose sum is σ = 38201763603852. Its totient is φ = 8489280800848.

The previous prime is 21223202002097. The next prime is 21223202002169. The reversal of 21223202002130 is 3120020232212.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 21217179776521 + 6022225609 = 4606211^2 + 77603^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1061160100097 + ... + 1061160100116.

Almost surely, 2^{21223202002130} is an apocalyptic number.

21223202002130 is a deficient number, since it is larger than the sum of its proper divisors (16978561601722).

21223202002130 is a wasteful number, since it uses less digits than its factorization.

21223202002130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2122320200220.

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

Adding to 21223202002130 its reverse (3120020232212), we get a palindrome (24343222234342).

The spelling of 21223202002130 in words is "twenty-one trillion, two hundred twenty-three billion, two hundred two million, two thousand, one hundred thirty".