212212332077 has 2 divisors, whose sum is σ = 212212332078. Its totient is φ = 212212332076.

The previous prime is 212212332041. The next prime is 212212332089. The reversal of 212212332077 is 770233212212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 212133015241 + 79316836 = 460579^2 + 8906^2 .

It is a cyclic number.

It is not a de Polignac number, because 212212332077 - 2²² = 212208137773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212212334077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106106166038 + 106106166039.

It is an arithmetic number, because the mean of its divisors is an integer number (106106166039).

Almost surely, 2^212212332077 is an apocalyptic number.

It is an amenable number.

212212332077 is a deficient number, since it is larger than the sum of its proper divisors (1).

212212332077 is an equidigital number, since it uses as much as digits as its factorization.

212212332077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14112, while the sum is 32.

Adding to 212212332077 its reverse (770233212212), we get a palindrome (982445544289).

The spelling of 212212332077 in words is "two hundred twelve billion, two hundred twelve million, three hundred thirty-two thousand, seventy-seven".