110202021221077 has 2 divisors, whose sum is σ = 110202021221078. Its totient is φ = 110202021221076.

The previous prime is 110202021221063. The next prime is 110202021221119. The reversal of 110202021221077 is 770122120202011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110185035572836 + 16985648241 = 10496906^2 + 130329^2 .

It is an emirp because it is prime and its reverse (770122120202011) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-110202021221077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (110202021221177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55101010610538 + 55101010610539.

It is an arithmetic number, because the mean of its divisors is an integer number (55101010610539).

Almost surely, 2^{110202021221077} is an apocalyptic number.

It is an amenable number.

110202021221077 is a deficient number, since it is larger than the sum of its proper divisors (1).

110202021221077 is an equidigital number, since it uses as much as digits as its factorization.

110202021221077 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 28.

Adding to 110202021221077 its reverse (770122120202011), we get a palindrome (880324141423088).

The spelling of 110202021221077 in words is "one hundred ten trillion, two hundred two billion, twenty-one million, two hundred twenty-one thousand, seventy-seven".