220211211021211 has 8 divisors (see below), whose sum is σ = 220571612138304. Its totient is φ = 219851103513600.

The previous prime is 220211211021157. The next prime is 220211211021223. The reversal of 220211211021211 is 112120112112022.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220211211021211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220211211021271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71901091 + ... + 74901196.

It is an arithmetic number, because the mean of its divisors is an integer number (27571451517288).

Almost surely, 2^{220211211021211} is an apocalyptic number.

220211211021211 is a deficient number, since it is larger than the sum of its proper divisors (360401117093).

220211211021211 is a wasteful number, since it uses less digits than its factorization.

220211211021211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146804741.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 220211211021211 its reverse (112120112112022), we get a palindrome (332331323133233).

The spelling of 220211211021211 in words is "two hundred twenty trillion, two hundred eleven billion, two hundred eleven million, twenty-one thousand, two hundred eleven".