1122219028 has 48 divisors (see below), whose sum is σ = 2440730880. Its totient is φ = 440418816.

The previous prime is 1122219023. The next prime is 1122219029. The reversal of 1122219028 is 8209122211.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 1122218987 and 1122219005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122219023) 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 15 ways as a sum of consecutive naturals, for example, 14248 + ... + 49471.

It is an arithmetic number, because the mean of its divisors is an integer number (50848560).

Almost surely, 2^1122219028 is an apocalyptic number.

It is an amenable number.

1122219028 is an abundant number, since it is smaller than the sum of its proper divisors (1318511852).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1122219028 is a wasteful number, since it uses less digits than its factorization.

1122219028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63784 (or 63782 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 1122219028 is about 33499.5377281538. The cubic root of 1122219028 is about 1039.1842184987.

The spelling of 1122219028 in words is "one billion, one hundred twenty-two million, two hundred nineteen thousand, twenty-eight".