1222221022 has 16 divisors (see below), whose sum is σ = 2037735792. Its totient is φ = 545072320.

The previous prime is 1222220971. The next prime is 1222221031. The reversal of 1222221022 is 2201222221.

It is a junction number, because it is equal to n+sod(n) for n = 1222220987 and 1222221005.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 522943 + ... + 525274.

It is an arithmetic number, because the mean of its divisors is an integer number (127358487).

Almost surely, 2^1222221022 is an apocalyptic number.

1222221022 is a deficient number, since it is larger than the sum of its proper divisors (815514770).

1222221022 is a wasteful number, since it uses less digits than its factorization.

1222221022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1048283.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 1222221022 is about 34960.2777734960. The cubic root of 1222221022 is about 1069.1777600209.

Adding to 1222221022 its reverse (2201222221), we get a palindrome (3423443243).

The spelling of 1222221022 in words is "one billion, two hundred twenty-two million, two hundred twenty-one thousand, twenty-two".