2221222012112 has 20 divisors (see below), whose sum is σ = 4364231983776. Its totient is φ = 1094968596960.

The previous prime is 2221222012021. The next prime is 2221222012147. The reversal of 2221222012112 is 2112102221222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 977649398 + ... + 977651669.

Almost surely, 2^{2221222012112} is an apocalyptic number.

It is an amenable number.

2221222012112 is a deficient number, since it is larger than the sum of its proper divisors (2143009971664).

2221222012112 is a wasteful number, since it uses less digits than its factorization.

2221222012112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1955301146 (or 1955301140 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 2221222012112 its reverse (2112102221222), we get a palindrome (4333324233334).

The spelling of 2221222012112 in words is "two trillion, two hundred twenty-one billion, two hundred twenty-two million, twelve thousand, one hundred twelve".