220112120102261 has 2 divisors, whose sum is σ = 220112120102262. Its totient is φ = 220112120102260.

The previous prime is 220112120102239. The next prime is 220112120102299. The reversal of 220112120102261 is 162201021211022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117492809148100 + 102619310954161 = 10839410^2 + 10130119^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220112120102261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220112120102201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110056060051130 + 110056060051131.

It is an arithmetic number, because the mean of its divisors is an integer number (110056060051131).

Almost surely, 2^{220112120102261} is an apocalyptic number.

It is an amenable number.

220112120102261 is a deficient number, since it is larger than the sum of its proper divisors (1).

220112120102261 is an equidigital number, since it uses as much as digits as its factorization.

220112120102261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 23.

Adding to 220112120102261 its reverse (162201021211022), we get a palindrome (382313141313283).

The spelling of 220112120102261 in words is "two hundred twenty trillion, one hundred twelve billion, one hundred twenty million, one hundred two thousand, two hundred sixty-one".