20212211222211 has 8 divisors (see below), whose sum is σ = 27196859137360. Its totient is φ = 13351185394272.

The previous prime is 20212211222209. The next prime is 20212211222237. The reversal of 20212211222211 is 11222211221202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20212211222211 - 2¹ = 20212211222209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20212211222111) 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 7 ways as a sum of consecutive naturals, for example, 30905521420 + ... + 30905522073.

It is an arithmetic number, because the mean of its divisors is an integer number (3399607392170).

Almost surely, 2^{20212211222211} is an apocalyptic number.

20212211222211 is a deficient number, since it is larger than the sum of its proper divisors (6984647915149).

20212211222211 is a wasteful number, since it uses less digits than its factorization.

20212211222211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61811043605.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 20212211222211 its reverse (11222211221202), we get a palindrome (31434422443413).

The spelling of 20212211222211 in words is "twenty trillion, two hundred twelve billion, two hundred eleven million, two hundred twenty-two thousand, two hundred eleven".