220202123 has 2 divisors, whose sum is σ = 220202124. Its totient is φ = 220202122.

The previous prime is 220202117. The next prime is 220202137. The reversal of 220202123 is 321202022.

It is an a-pointer prime, because the next prime (220202137) can be obtained adding 220202123 to its sum of digits (14).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 220202123 - 2¹⁰ = 220201099 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220202098 and 220202107.

It is not a weakly prime, because it can be changed into another prime (220202113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110101061 + 110101062.

It is an arithmetic number, because the mean of its divisors is an integer number (110101062).

Almost surely, 2^220202123 is an apocalyptic number.

220202123 is a deficient number, since it is larger than the sum of its proper divisors (1).

220202123 is an equidigital number, since it uses as much as digits as its factorization.

220202123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 220202123 is about 14839.2089748746. The cubic root of 220202123 is about 603.8658925906.

Adding to 220202123 its reverse (321202022), we get a palindrome (541404145).

The spelling of 220202123 in words is "two hundred twenty million, two hundred two thousand, one hundred twenty-three".