220200022121077 has 2 divisors, whose sum is σ = 220200022121078. Its totient is φ = 220200022121076.

The previous prime is 220200022121021. The next prime is 220200022121161. The reversal of 220200022121077 is 770121220002022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 216375685961796 + 3824336159281 = 14709714^2 + 1955591^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-220200022121077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220200022121777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110100011060538 + 110100011060539.

It is an arithmetic number, because the mean of its divisors is an integer number (110100011060539).

Almost surely, 2^{220200022121077} is an apocalyptic number.

It is an amenable number.

220200022121077 is a deficient number, since it is larger than the sum of its proper divisors (1).

220200022121077 is an equidigital number, since it uses as much as digits as its factorization.

220200022121077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3136, while the sum is 28.

Adding to 220200022121077 its reverse (770121220002022), we get a palindrome (990321242123099).

The spelling of 220200022121077 in words is "two hundred twenty trillion, two hundred billion, twenty-two million, one hundred twenty-one thousand, seventy-seven".