220001021211 has 8 divisors (see below), whose sum is σ = 293407916544. Its totient is φ = 146630736680.

The previous prime is 220001021209. The next prime is 220001021249. The reversal of 220001021211 is 112120100022.

220001021211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 220001021211 - 2¹ = 220001021209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220001021281) 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, 9138675 + ... + 9162716.

It is an arithmetic number, because the mean of its divisors is an integer number (36675989568).

Almost surely, 2^220001021211 is an apocalyptic number.

220001021211 is a deficient number, since it is larger than the sum of its proper divisors (73406895333).

220001021211 is a wasteful number, since it uses less digits than its factorization.

220001021211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18305401.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 220001021211 its reverse (112120100022), we get a palindrome (332121121233).

The spelling of 220001021211 in words is "two hundred twenty billion, one million, twenty-one thousand, two hundred eleven".