220549248109 has 2 divisors, whose sum is σ = 220549248110. Its totient is φ = 220549248108.

The previous prime is 220549248103. The next prime is 220549248113. The reversal of 220549248109 is 901842945022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 117217216900 + 103332031209 = 342370^2 + 321453^2 .

It is a cyclic number.

It is not a de Polignac number, because 220549248109 - 2²³ = 220540859501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220549248103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110274624054 + 110274624055.

It is an arithmetic number, because the mean of its divisors is an integer number (110274624055).

Almost surely, 2^220549248109 is an apocalyptic number.

It is an amenable number.

220549248109 is a deficient number, since it is larger than the sum of its proper divisors (1).

220549248109 is an equidigital number, since it uses as much as digits as its factorization.

220549248109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 414720, while the sum is 46.

The spelling of 220549248109 in words is "two hundred twenty billion, five hundred forty-nine million, two hundred forty-eight thousand, one hundred nine".