1222223446779 has 16 divisors (see below), whose sum is σ = 1631892218880. Its totient is φ = 813685340160.

The previous prime is 1222223446777. The next prime is 1222223446837. The reversal of 1222223446779 is 9776443222221.

It is not a de Polignac number, because 1222223446779 - 2¹ = 1222223446777 is a prime.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (1222223446777) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52419534 + ... + 52442844.

It is an arithmetic number, because the mean of its divisors is an integer number (101993263680).

Almost surely, 2^{1222223446779} is an apocalyptic number.

1222223446779 is a deficient number, since it is larger than the sum of its proper divisors (409668772101).

1222223446779 is a wasteful number, since it uses less digits than its factorization.

1222223446779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46810.

The product of its digits is 4064256, while the sum is 51.

The spelling of 1222223446779 in words is "one trillion, two hundred twenty-two billion, two hundred twenty-three million, four hundred forty-six thousand, seven hundred seventy-nine".