220212221211 has 16 divisors (see below), whose sum is σ = 331769827200. Its totient is φ = 144319872744.

The previous prime is 220212221183. The next prime is 220212221213. The reversal of 220212221211 is 112122212022.

It is a happy number.

220212221211 is a `hidden beast` number, since 2 + 20 + 212 + 221 + 211 = 666.

It is not a de Polignac number, because 220212221211 - 2¹⁷ = 220212090139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220212221213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69117121 + ... + 69120306.

It is an arithmetic number, because the mean of its divisors is an integer number (20735614200).

Almost surely, 2^220212221211 is an apocalyptic number.

220212221211 is a deficient number, since it is larger than the sum of its proper divisors (111557605989).

220212221211 is a wasteful number, since it uses less digits than its factorization.

220212221211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138237495 (or 138237489 counting only the distinct ones).

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

Adding to 220212221211 its reverse (112122212022), we get a palindrome (332334433233).

The spelling of 220212221211 in words is "two hundred twenty billion, two hundred twelve million, two hundred twenty-one thousand, two hundred eleven".