1122246779 has 4 divisors (see below), whose sum is σ = 1158448320. Its totient is φ = 1086045240.

The previous prime is 1122246757. The next prime is 1122246781. The reversal of 1122246779 is 9776422211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9776422211 = 277 ⋅35293943.

It is a cyclic number.

It is not a de Polignac number, because 1122246779 - 2²⁸ = 853811323 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (1122246679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18100724 + ... + 18100785.

It is an arithmetic number, because the mean of its divisors is an integer number (289612080).

Almost surely, 2^1122246779 is an apocalyptic number.

1122246779 is a deficient number, since it is larger than the sum of its proper divisors (36201541).

1122246779 is an equidigital number, since it uses as much as digits as its factorization.

1122246779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36201540.

The product of its digits is 84672, while the sum is 41.

The square root of 1122246779 is about 33499.9519253386. The cubic root of 1122246779 is about 1039.1927843142.

The spelling of 1122246779 in words is "one billion, one hundred twenty-two million, two hundred forty-six thousand, seven hundred seventy-nine".