1000000221112 has 16 divisors (see below), whose sum is σ = 1875389733360. Its totient is φ = 499896292224.

The previous prime is 1000000221107. The next prime is 1000000221131. The reversal of 1000000221112 is 2111220000001.

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, 12936348 + ... + 13013419.

It is an arithmetic number, because the mean of its divisors is an integer number (117211858335).

Almost surely, 2^{1000000221112} is an apocalyptic number.

It is an amenable number.

1000000221112 is a deficient number, since it is larger than the sum of its proper divisors (875389512248).

1000000221112 is a wasteful number, since it uses less digits than its factorization.

1000000221112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25954590 (or 25954586 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 1000000221112 its reverse (2111220000001), we get a palindrome (3111220221113).

The spelling of 1000000221112 in words is "one trillion, two hundred twenty-one thousand, one hundred twelve".