2123220204430 has 16 divisors (see below), whose sum is σ = 4115780704224. Its totient is φ = 783958229280.

The previous prime is 2123220204407. The next prime is 2123220204437. The reversal of 2123220204430 is 344020223212.

It is a junction number, because it is equal to n+sod(n) for n = 2123220204395 and 2123220204404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123220204437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8166231426 + ... + 8166231685.

It is an arithmetic number, because the mean of its divisors is an integer number (257236294014).

Almost surely, 2^{2123220204430} is an apocalyptic number.

2123220204430 is a deficient number, since it is larger than the sum of its proper divisors (1992560499794).

2123220204430 is a wasteful number, since it uses less digits than its factorization.

2123220204430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16332463131.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 2123220204430 its reverse (344020223212), we get a palindrome (2467240427642).

The spelling of 2123220204430 in words is "two trillion, one hundred twenty-three billion, two hundred twenty million, two hundred four thousand, four hundred thirty".