220100020220101 has 12 divisors (see below), whose sum is σ = 256307966883948. Its totient is φ = 188455818462912.

The previous prime is 220100020220081. The next prime is 220100020220117. The reversal of 220100020220101 is 101022020001022.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 18062508500001 + 202037511720100 = 4250001^2 + 14213990^2 .

It is not a de Polignac number, because 220100020220101 - 2³¹ = 220097872736453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220100020220131) 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 11 ways as a sum of consecutive naturals, for example, 2396878926 + ... + 2396970751.

It is an arithmetic number, because the mean of its divisors is an integer number (21358997240329).

Almost surely, 2^{220100020220101} is an apocalyptic number.

It is an amenable number.

220100020220101 is a deficient number, since it is larger than the sum of its proper divisors (36207946663847).

220100020220101 is an equidigital number, since it uses as much as digits as its factorization.

220100020220101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4793850628 (or 4793850621 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 220100020220101 its reverse (101022020001022), we get a palindrome (321122040221123).

The spelling of 220100020220101 in words is "two hundred twenty trillion, one hundred billion, twenty million, two hundred twenty thousand, one hundred one".