1021112222 has 32 divisors (see below), whose sum is σ = 1671171264. Its totient is φ = 465120000.

The previous prime is 1021112221. The next prime is 1021112237. The reversal of 1021112222 is 2222111201.

It is a junction number, because it is equal to n+sod(n) for n = 1021112197 and 1021112206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021112221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1577903 + ... + 1578549.

It is an arithmetic number, because the mean of its divisors is an integer number (52224102).

Almost surely, 2^1021112222 is an apocalyptic number.

1021112222 is a deficient number, since it is larger than the sum of its proper divisors (650059042).

1021112222 is a wasteful number, since it uses less digits than its factorization.

1021112222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1364.

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

The square root of 1021112222 is about 31954.8466120556. The cubic root of 1021112222 is about 1006.9884550606.

Adding to 1021112222 its reverse (2222111201), we get a palindrome (3243223423).

The spelling of 1021112222 in words is "one billion, twenty-one million, one hundred twelve thousand, two hundred twenty-two".