220112209123949 has 2 divisors, whose sum is σ = 220112209123950. Its totient is φ = 220112209123948.

The previous prime is 220112209123943. The next prime is 220112209123969. The reversal of 220112209123949 is 949321902211022.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 165961640412100 + 54150568711849 = 12882610^2 + 7358707^2 .

It is a cyclic number.

It is not a de Polignac number, because 220112209123949 - 2³² = 220107914156653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220112209123943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110056104561974 + 110056104561975.

It is an arithmetic number, because the mean of its divisors is an integer number (110056104561975).

Almost surely, 2^{220112209123949} is an apocalyptic number.

It is an amenable number.

220112209123949 is a deficient number, since it is larger than the sum of its proper divisors (1).

220112209123949 is an equidigital number, since it uses as much as digits as its factorization.

220112209123949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 279936, while the sum is 47.

The spelling of 220112209123949 in words is "two hundred twenty trillion, one hundred twelve billion, two hundred nine million, one hundred twenty-three thousand, nine hundred forty-nine".