220122201077 has 2 divisors, whose sum is σ = 220122201078. Its totient is φ = 220122201076.

The previous prime is 220122201067. The next prime is 220122201113. The reversal of 220122201077 is 770102221022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 191803706116 + 28318494961 = 437954^2 + 168281^2 .

It is a cyclic number.

It is not a de Polignac number, because 220122201077 - 2¹² = 220122196981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (220122201007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110061100538 + 110061100539.

It is an arithmetic number, because the mean of its divisors is an integer number (110061100539).

Almost surely, 2^220122201077 is an apocalyptic number.

It is an amenable number.

220122201077 is a deficient number, since it is larger than the sum of its proper divisors (1).

220122201077 is an equidigital number, since it uses as much as digits as its factorization.

220122201077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1568, while the sum is 26.

Adding to 220122201077 its reverse (770102221022), we get a palindrome (990224422099).

The spelling of 220122201077 in words is "two hundred twenty billion, one hundred twenty-two million, two hundred one thousand, seventy-seven".