2221421112 has 80 divisors (see below), whose sum is σ = 6436643400. Its totient is φ = 714934080.

The previous prime is 2221421101. The next prime is 2221421131. The reversal of 2221421112 is 2111241222.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

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 19 ways as a sum of consecutive naturals, for example, 40314 + ... + 77897.

Almost surely, 2^2221421112 is an apocalyptic number.

It is an amenable number.

2221421112 is an abundant number, since it is smaller than the sum of its proper divisors (4215222288).

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

2221421112 is a wasteful number, since it uses less digits than its factorization.

2221421112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118258 (or 118245 counting only the distinct ones).

The product of its digits is 128, while the sum is 18.

The square root of 2221421112 is about 47131.9542561095. The cubic root of 2221421112 is about 1304.7990495180.

Adding to 2221421112 its reverse (2111241222), we get a palindrome (4332662334).

The spelling of 2221421112 in words is "two billion, two hundred twenty-one million, four hundred twenty-one thousand, one hundred twelve".