220110010101 has 12 divisors (see below), whose sum is σ = 336638839212. Its totient is φ = 138108241536.

The previous prime is 220110010091. The next prime is 220110010103. The reversal of 220110010101 is 101010011022.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 189530493201 + 30579516900 = 435351^2 + 174870^2 .

It is not a de Polignac number, because 220110010101 - 2²⁶ = 220042901237 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220110010103) 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 11 ways as a sum of consecutive naturals, for example, 719313606 + ... + 719313911.

It is an arithmetic number, because the mean of its divisors is an integer number (28053236601).

Almost surely, 2^220110010101 is an apocalyptic number.

It is an amenable number.

220110010101 is a deficient number, since it is larger than the sum of its proper divisors (116528829111).

220110010101 is a wasteful number, since it uses less digits than its factorization.

220110010101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1438627540 (or 1438627537 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 220110010101 its reverse (101010011022), we get a palindrome (321120021123).

The spelling of 220110010101 in words is "two hundred twenty billion, one hundred ten million, ten thousand, one hundred one".