220203311101 has 2 divisors, whose sum is σ = 220203311102. Its totient is φ = 220203311100.

The previous prime is 220203311089. The next prime is 220203311179. The reversal of 220203311101 is 101113302022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 188031507876 + 32171803225 = 433626^2 + 179365^2 .

It is a cyclic number.

It is not a de Polignac number, because 220203311101 - 2⁷ = 220203310973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220203311501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110101655550 + 110101655551.

It is an arithmetic number, because the mean of its divisors is an integer number (110101655551).

Almost surely, 2^220203311101 is an apocalyptic number.

It is an amenable number.

220203311101 is a deficient number, since it is larger than the sum of its proper divisors (1).

220203311101 is an equidigital number, since it uses as much as digits as its factorization.

220203311101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 220203311101 its reverse (101113302022), we get a palindrome (321316613123).

The spelling of 220203311101 in words is "two hundred twenty billion, two hundred three million, three hundred eleven thousand, one hundred one".