2221122112012 has 12 divisors (see below), whose sum is σ = 3886980452320. Its totient is φ = 1110556268496.

The previous prime is 2221122111979. The next prime is 2221122112031. The reversal of 2221122112012 is 2102112211222.

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, 25668 + ... + 2107819.

Almost surely, 2^{2221122112012} is an apocalyptic number.

It is an amenable number.

2221122112012 is a deficient number, since it is larger than the sum of its proper divisors (1665858340308).

2221122112012 is a wasteful number, since it uses less digits than its factorization.

2221122112012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2393760 (or 2393758 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 2221122112012 its reverse (2102112211222), we get a palindrome (4323234323234).

The spelling of 2221122112012 in words is "two trillion, two hundred twenty-one billion, one hundred twenty-two million, one hundred twelve thousand, twelve".