20201222211 has 8 divisors (see below), whose sum is σ = 26936377104. Its totient is φ = 13466774400.

The previous prime is 20201222203. The next prime is 20201222221. The reversal of 20201222211 is 11222210202.

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

It is not a de Polignac number, because 20201222211 - 2³ = 20201222203 is a prime.

20201222211 is a modest number, since divided by 222211 gives 20201 as remainder.

It is not an unprimeable number, because it can be changed into a prime (20201222221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106066 + ... + 227271.

It is an arithmetic number, because the mean of its divisors is an integer number (3367047138).

Almost surely, 2^20201222211 is an apocalyptic number.

20201222211 is a deficient number, since it is larger than the sum of its proper divisors (6735154893).

20201222211 is a wasteful number, since it uses less digits than its factorization.

20201222211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353541.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20201222211 its reverse (11222210202), we get a palindrome (31423432413).

The spelling of 20201222211 in words is "twenty billion, two hundred one million, two hundred twenty-two thousand, two hundred eleven".