20122200012077 has 2 divisors, whose sum is σ = 20122200012078. Its totient is φ = 20122200012076.

The previous prime is 20122200012059. The next prime is 20122200012113. The reversal of 20122200012077 is 77021000222102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16923070702756 + 3199129309321 = 4113766^2 + 1788611^2 .

It is a cyclic number.

It is not a de Polignac number, because 20122200012077 - 2⁸ = 20122200011821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20122200012037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10061100006038 + 10061100006039.

It is an arithmetic number, because the mean of its divisors is an integer number (10061100006039).

Almost surely, 2^{20122200012077} is an apocalyptic number.

It is an amenable number.

20122200012077 is a deficient number, since it is larger than the sum of its proper divisors (1).

20122200012077 is an equidigital number, since it uses as much as digits as its factorization.

20122200012077 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 20122200012077 its reverse (77021000222102), we get a palindrome (97143200234179).

The spelling of 20122200012077 in words is "twenty trillion, one hundred twenty-two billion, two hundred million, twelve thousand, seventy-seven".