1012212112277 has 2 divisors, whose sum is σ = 1012212112278. Its totient is φ = 1012212112276.

The previous prime is 1012212112267. The next prime is 1012212112321. The reversal of 1012212112277 is 7722112122101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 935038716676 + 77173395601 = 966974^2 + 277801^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1012212112277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1012212112267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506106056138 + 506106056139.

It is an arithmetic number, because the mean of its divisors is an integer number (506106056139).

Almost surely, 2^{1012212112277} is an apocalyptic number.

It is an amenable number.

1012212112277 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012212112277 is an equidigital number, since it uses as much as digits as its factorization.

1012212112277 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 29.

Adding to 1012212112277 its reverse (7722112122101), we get a palindrome (8734324234378).

The spelling of 1012212112277 in words is "one trillion, twelve billion, two hundred twelve million, one hundred twelve thousand, two hundred seventy-seven".