1122221077 has 2 divisors, whose sum is σ = 1122221078. Its totient is φ = 1122221076.

The previous prime is 1122221047. The next prime is 1122221143. The reversal of 1122221077 is 7701222211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 566487601 + 555733476 = 23801^2 + 23574^2 .

It is an emirp because it is prime and its reverse (7701222211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1122221077 - 2¹¹ = 1122219029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1122221047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561110538 + 561110539.

It is an arithmetic number, because the mean of its divisors is an integer number (561110539).

Almost surely, 2^1122221077 is an apocalyptic number.

It is an amenable number.

1122221077 is a deficient number, since it is larger than the sum of its proper divisors (1).

1122221077 is an equidigital number, since it uses as much as digits as its factorization.

1122221077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 784, while the sum is 25.

The square root of 1122221077 is about 33499.5683106514. The cubic root of 1122221077 is about 1039.1848509620.

Adding to 1122221077 its reverse (7701222211), we get a palindrome (8823443288).

The spelling of 1122221077 in words is "one billion, one hundred twenty-two million, two hundred twenty-one thousand, seventy-seven".