20202122201077 has 2 divisors, whose sum is σ = 20202122201078. Its totient is φ = 20202122201076.

The previous prime is 20202122201069. The next prime is 20202122201111. The reversal of 20202122201077 is 77010222120202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19393577746596 + 808544454481 = 4403814^2 + 899191^2 .

It is a cyclic number.

It is not a de Polignac number, because 20202122201077 - 2³ = 20202122201069 is a prime.

It is a super-2 number, since 2×20202122201077² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20202122207077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10101061100538 + 10101061100539.

It is an arithmetic number, because the mean of its divisors is an integer number (10101061100539).

Almost surely, 2^{20202122201077} is an apocalyptic number.

It is an amenable number.

20202122201077 is a deficient number, since it is larger than the sum of its proper divisors (1).

20202122201077 is an equidigital number, since it uses as much as digits as its factorization.

20202122201077 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 20202122201077 its reverse (77010222120202), we get a palindrome (97212344321279).

The spelling of 20202122201077 in words is "twenty trillion, two hundred two billion, one hundred twenty-two million, two hundred one thousand, seventy-seven".