1122221078 has 16 divisors (see below), whose sum is σ = 1836907200. Its totient is φ = 509949000.

The previous prime is 1122221077. The next prime is 1122221143. The reversal of 1122221078 is 8701222211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122221077) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106073 + ... + 116171.

It is an arithmetic number, because the mean of its divisors is an integer number (114806700).

Almost surely, 2^1122221078 is an apocalyptic number.

1122221078 is a deficient number, since it is larger than the sum of its proper divisors (714686122).

1122221078 is a wasteful number, since it uses less digits than its factorization.

1122221078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15163.

The product of its (nonzero) digits is 896, while the sum is 26.

The square root of 1122221078 is about 33499.5683255770. The cubic root of 1122221078 is about 1039.1848512707.

Adding to 1122221078 its reverse (8701222211), we get a palindrome (9823443289).

The spelling of 1122221078 in words is "one billion, one hundred twenty-two million, two hundred twenty-one thousand, seventy-eight".