1022211218 has 32 divisors (see below), whose sum is σ = 1830712320. Its totient is φ = 418548240.

The previous prime is 1022211217. The next prime is 1022211259. The reversal of 1022211218 is 8121122201.

It is a self number, because there is not a number n which added to its sum of digits gives 1022211218.

It is not an unprimeable number, because it can be changed into a prime (1022211217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 414473 + ... + 416931.

It is an arithmetic number, because the mean of its divisors is an integer number (57209760).

Almost surely, 2^1022211218 is an apocalyptic number.

1022211218 is a deficient number, since it is larger than the sum of its proper divisors (808501102).

1022211218 is a wasteful number, since it uses less digits than its factorization.

1022211218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3782.

The product of its (nonzero) digits is 128, while the sum is 20.

The square root of 1022211218 is about 31972.0380645338. The cubic root of 1022211218 is about 1007.3495905195.

Adding to 1022211218 its reverse (8121122201), we get a palindrome (9143333419).

The spelling of 1022211218 in words is "one billion, twenty-two million, two hundred eleven thousand, two hundred eighteen".