1222011222 has 16 divisors (see below), whose sum is σ = 2528299440. Its totient is φ = 393290912.

The previous prime is 1222011199. The next prime is 1222011223. The reversal of 1222011222 is 2221102221.

It is a super-2 number, since 2×1222011222² = 2986622853387866568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222011223) 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, 3511353 + ... + 3511700.

It is an arithmetic number, because the mean of its divisors is an integer number (158018715).

Almost surely, 2^1222011222 is an apocalyptic number.

1222011222 is an abundant number, since it is smaller than the sum of its proper divisors (1306288218).

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

1222011222 is a wasteful number, since it uses less digits than its factorization.

1222011222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7023087.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 1222011222 is about 34957.2770964788. The cubic root of 1222011222 is about 1069.1165800526.

Adding to 1222011222 its reverse (2221102221), we get a palindrome (3443113443).

Subtracting 1222011222 from its reverse (2221102221), we obtain a palindrome (999090999).

The spelling of 1222011222 in words is "one billion, two hundred twenty-two million, eleven thousand, two hundred twenty-two".