1011212077 has 2 divisors, whose sum is σ = 1011212078. Its totient is φ = 1011212076.

The previous prime is 1011212063. The next prime is 1011212093. The reversal of 1011212077 is 7702121101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 960318121 + 50893956 = 30989^2 + 7134^2 .

It is a cyclic number.

It is not a de Polignac number, because 1011212077 - 2¹⁹ = 1010687789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1011212047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505606038 + 505606039.

It is an arithmetic number, because the mean of its divisors is an integer number (505606039).

Almost surely, 2^1011212077 is an apocalyptic number.

It is an amenable number.

1011212077 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011212077 is an equidigital number, since it uses as much as digits as its factorization.

1011212077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 196, while the sum is 22.

The square root of 1011212077 is about 31799.5609560887. The cubic root of 1011212077 is about 1003.7234775075.

Adding to 1011212077 its reverse (7702121101), we get a palindrome (8713333178).

The spelling of 1011212077 in words is "one billion, eleven million, two hundred twelve thousand, seventy-seven".