2123220210289 has 2 divisors, whose sum is σ = 2123220210290. Its totient is φ = 2123220210288.

The previous prime is 2123220210271. The next prime is 2123220210323. The reversal of 2123220210289 is 9820120223212.

It is an a-pointer prime, because the next prime (2123220210323) can be obtained adding 2123220210289 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2122615886400 + 604323889 = 1456920^2 + 24583^2 .

It is a cyclic number.

It is not a de Polignac number, because 2123220210289 - 2⁹ = 2123220209777 is a prime.

It is a super-2 number, since 2×2123220210289² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2123220210239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061610105144 + 1061610105145.

It is an arithmetic number, because the mean of its divisors is an integer number (1061610105145).

Almost surely, 2^{2123220210289} is an apocalyptic number.

It is an amenable number.

2123220210289 is a deficient number, since it is larger than the sum of its proper divisors (1).

2123220210289 is an equidigital number, since it uses as much as digits as its factorization.

2123220210289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 34.

The spelling of 2123220210289 in words is "two trillion, one hundred twenty-three billion, two hundred twenty million, two hundred ten thousand, two hundred eighty-nine".