1022219818 has 16 divisors (see below), whose sum is σ = 1543524480. Its totient is φ = 507722256.

The previous prime is 1022219791. The next prime is 1022219819. The reversal of 1022219818 is 8189122201.

It is not an unprimeable number, because it can be changed into a prime (1022219819) 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, 220755 + ... + 225337.

It is an arithmetic number, because the mean of its divisors is an integer number (96470280).

Almost surely, 2^1022219818 is an apocalyptic number.

1022219818 is a deficient number, since it is larger than the sum of its proper divisors (521304662).

1022219818 is a wasteful number, since it uses less digits than its factorization.

1022219818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5301.

The product of its (nonzero) digits is 4608, while the sum is 34.

The square root of 1022219818 is about 31972.1725567719. The cubic root of 1022219818 is about 1007.3524155006.

The spelling of 1022219818 in words is "one billion, twenty-two million, two hundred nineteen thousand, eight hundred eighteen".