20221210230212 has 6 divisors (see below), whose sum is σ = 35387117902878. Its totient is φ = 10110605115104.

The previous prime is 20221210230209. The next prime is 20221210230229. The reversal of 20221210230212 is 21203201212202.

It can be written as a sum of positive squares in only one way, i.e., 12464684447296 + 7756525782916 = 3530536^2 + 2785054^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2527651278773 + ... + 2527651278780.

It is an arithmetic number, because the mean of its divisors is an integer number (5897852983813).

Almost surely, 2^{20221210230212} is an apocalyptic number.

It is an amenable number.

20221210230212 is a deficient number, since it is larger than the sum of its proper divisors (15165907672666).

20221210230212 is a wasteful number, since it uses less digits than its factorization.

20221210230212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5055302557557 (or 5055302557555 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 20221210230212 its reverse (21203201212202), we get a palindrome (41424411442414).

The spelling of 20221210230212 in words is "twenty trillion, two hundred twenty-one billion, two hundred ten million, two hundred thirty thousand, two hundred twelve".