1222021112 has 32 divisors (see below), whose sum is σ = 2469164880. Its totient is φ = 563639040.

The previous prime is 1222021093. The next prime is 1222021121. The reversal of 1222021112 is 2111202221.

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, 213812 + ... + 219452.

Almost surely, 2^1222021112 is an apocalyptic number.

It is an amenable number.

1222021112 is an abundant number, since it is smaller than the sum of its proper divisors (1247143768).

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

1222021112 is a wasteful number, since it uses less digits than its factorization.

1222021112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7743 (or 7739 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 1222021112 is about 34957.4185545787. The cubic root of 1222021112 is about 1069.1194642417.

Adding to 1222021112 its reverse (2111202221), we get a palindrome (3333223333).

The spelling of 1222021112 in words is "one billion, two hundred twenty-two million, twenty-one thousand, one hundred twelve".