2220121112 has 32 divisors (see below), whose sum is σ = 4608947520. Its totient is φ = 994081440.

The previous prime is 2220121073. The next prime is 2220121153. The reversal of 2220121112 is 2111210222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182378 + ... + 194169.

It is an arithmetic number, because the mean of its divisors is an integer number (144029610).

Almost surely, 2^2220121112 is an apocalyptic number.

2220121112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2220121112 is an abundant number, since it is smaller than the sum of its proper divisors (2388826408).

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

2220121112 is a wasteful number, since it uses less digits than its factorization.

2220121112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376631 (or 376627 counting only the distinct ones).

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

The square root of 2220121112 is about 47118.1611695533. The cubic root of 2220121112 is about 1304.5444722793.

Adding to 2220121112 its reverse (2111210222), we get a palindrome (4331331334).

The spelling of 2220121112 in words is "two billion, two hundred twenty million, one hundred twenty-one thousand, one hundred twelve".