20221020122211 has 28 divisors (see below), whose sum is σ = 30814672077520. Its totient is φ = 13259685296880.

The previous prime is 20221020122159. The next prime is 20221020122243. The reversal of 20221020122211 is 11222102012202.

It is a happy number.

20221020122211 is a `hidden beast` number, since 20 + 2 + 210 + 201 + 22 + 211 = 666.

It is not a de Polignac number, because 20221020122211 - 2¹⁹ = 20221019597923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20221020122311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 227316391 + ... + 227405328.

Almost surely, 2^{20221020122211} is an apocalyptic number.

20221020122211 is a deficient number, since it is larger than the sum of its proper divisors (10593651955309).

20221020122211 is an frugal number, since it uses more digits than its factorization.

20221020122211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454721798 (or 454721783 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 20221020122211 its reverse (11222102012202), we get a palindrome (31443122134413).

The spelling of 20221020122211 in words is "twenty trillion, two hundred twenty-one billion, twenty million, one hundred twenty-two thousand, two hundred eleven".