220203202123249 has 2 divisors, whose sum is σ = 220203202123250. Its totient is φ = 220203202123248.

The previous prime is 220203202123183. The next prime is 220203202123279. The reversal of 220203202123249 is 942321202302022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 219727851168400 + 475350954849 = 14823220^2 + 689457^2 .

It is a cyclic number.

It is not a de Polignac number, because 220203202123249 - 2²⁹ = 220202665252337 is a prime.

It is not a weakly prime, because it can be changed into another prime (220203202123279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110101601061624 + 110101601061625.

It is an arithmetic number, because the mean of its divisors is an integer number (110101601061625).

Almost surely, 2^{220203202123249} is an apocalyptic number.

It is an amenable number.

220203202123249 is a deficient number, since it is larger than the sum of its proper divisors (1).

220203202123249 is an equidigital number, since it uses as much as digits as its factorization.

220203202123249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 34.

The spelling of 220203202123249 in words is "two hundred twenty trillion, two hundred three billion, two hundred two million, one hundred twenty-three thousand, two hundred forty-nine".