20221221213130 has 32 divisors (see below), whose sum is σ = 41598275503104. Its totient is φ = 6932934343296.

The previous prime is 20221221213071. The next prime is 20221221213133. The reversal of 20221221213130 is 3131212212202.

It is not an unprimeable number, because it can be changed into a prime (20221221213133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8125654 + ... + 10318366.

It is an arithmetic number, because the mean of its divisors is an integer number (1299946109472).

Almost surely, 2^{20221221213130} is an apocalyptic number.

20221221213130 is an abundant number, since it is smaller than the sum of its proper divisors (21377054289974).

20221221213130 is a wasteful number, since it uses less digits than its factorization.

20221221213130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2324470.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 20221221213130 its reverse (3131212212202), we get a palindrome (23352433425332).

The spelling of 20221221213130 in words is "twenty trillion, two hundred twenty-one billion, two hundred twenty-one million, two hundred thirteen thousand, one hundred thirty".