20212322211 has 6 divisors (see below), whose sum is σ = 29195576540. Its totient is φ = 13474881468.

The previous prime is 20212322173. The next prime is 20212322213. The reversal of 20212322211 is 11222321202.

It is not a de Polignac number, because 20212322211 - 2²¹ = 20210225059 is a prime.

It is a super-2 number, since 2×20212322211² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20212322213) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1122906781 + ... + 1122906798.

Almost surely, 2^20212322211 is an apocalyptic number.

20212322211 is a deficient number, since it is larger than the sum of its proper divisors (8983254329).

20212322211 is a wasteful number, since it uses less digits than its factorization.

20212322211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2245813585 (or 2245813582 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 20212322211 its reverse (11222321202), we get a palindrome (31434643413).

It can be divided in two parts, 2021 and 2322211, that added together give a palindrome (2324232).

The spelling of 20212322211 in words is "twenty billion, two hundred twelve million, three hundred twenty-two thousand, two hundred eleven".