2123220530 has 8 divisors (see below), whose sum is σ = 3821796972. Its totient is φ = 849288208.

The previous prime is 2123220527. The next prime is 2123220563. The reversal of 2123220530 is 350223212.

It can be written as a sum of positive squares in 2 ways, for example, as 2071797289 + 51423241 = 45517^2 + 7171^2 .

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

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 3 ways as a sum of consecutive naturals, for example, 106161017 + ... + 106161036.

Almost surely, 2^2123220530 is an apocalyptic number.

2123220530 is a deficient number, since it is larger than the sum of its proper divisors (1698576442).

2123220530 is a wasteful number, since it uses less digits than its factorization.

2123220530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212322060.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 2123220530 is about 46078.4171820170. The cubic root of 2123220530 is about 1285.2818309195.

Adding to 2123220530 its reverse (350223212), we get a palindrome (2473443742).

The spelling of 2123220530 in words is "two billion, one hundred twenty-three million, two hundred twenty thousand, five hundred thirty".