220120344063251 has 2 divisors, whose sum is σ = 220120344063252. Its totient is φ = 220120344063250.

The previous prime is 220120344063209. The next prime is 220120344063311. The reversal of 220120344063251 is 152360443021022.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 220120344063251 - 2⁶ = 220120344063187 is a prime.

It is not a weakly prime, because it can be changed into another prime (220120344083251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110060172031625 + 110060172031626.

It is an arithmetic number, because the mean of its divisors is an integer number (110060172031626).

Almost surely, 2^{220120344063251} is an apocalyptic number.

220120344063251 is a deficient number, since it is larger than the sum of its proper divisors (1).

220120344063251 is an equidigital number, since it uses as much as digits as its factorization.

220120344063251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69120, while the sum is 35.

Adding to 220120344063251 its reverse (152360443021022), we get a palindrome (372480787084273).

The spelling of 220120344063251 in words is "two hundred twenty trillion, one hundred twenty billion, three hundred forty-four million, sixty-three thousand, two hundred fifty-one".