220211211101 has 18 divisors (see below), whose sum is σ = 272118934458. Its totient is φ = 177649368960.

The previous prime is 220211211053. The next prime is 220211211113. The reversal of 220211211101 is 101112112022.

It can be written as a sum of positive squares in 3 ways, for example, as 128099568100 + 92111643001 = 357910^2 + 303499^2 .

It is a de Polignac number, because none of the positive numbers 2^k-220211211101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220211211161) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 7761110 + ... + 7789431.

It is an arithmetic number, because the mean of its divisors is an integer number (15117718581).

Almost surely, 2^220211211101 is an apocalyptic number.

It is an amenable number.

220211211101 is a deficient number, since it is larger than the sum of its proper divisors (51907723357).

220211211101 is a wasteful number, since it uses less digits than its factorization.

220211211101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15550589 (or 15550565 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 220211211101 its reverse (101112112022), we get a palindrome (321323323123).

The spelling of 220211211101 in words is "two hundred twenty billion, two hundred eleven million, two hundred eleven thousand, one hundred one".