20221020210212 has 12 divisors (see below), whose sum is σ = 35386839423516. Its totient is φ = 10110494660640.

The previous prime is 20221020210211. The next prime is 20221020210233. The reversal of 20221020210212 is 21201202012202.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 546259940836 + 19674760269376 = 739094^2 + 4435624^2 .

It is not an unprimeable number, because it can be changed into a prime (20221020210211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 611339 + ... + 6388722.

It is an arithmetic number, because the mean of its divisors is an integer number (2948903285293).

Almost surely, 2^{20221020210212} is an apocalyptic number.

It is an amenable number.

20221020210212 is a deficient number, since it is larger than the sum of its proper divisors (15165819213304).

20221020210212 is a wasteful number, since it uses less digits than its factorization.

20221020210212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7722238 (or 7722236 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 20221020210212 its reverse (21201202012202), we get a palindrome (41422222222414).

The spelling of 20221020210212 in words is "twenty trillion, two hundred twenty-one billion, twenty million, two hundred ten thousand, two hundred twelve".