2221231210112 has 16 divisors (see below), whose sum is σ = 4425109051650. Its totient is φ = 1110615604992.

The previous prime is 2221231210097. The next prime is 2221231210117. The reversal of 2221231210112 is 2110121321222.

It can be written as a sum of positive squares in only one way, i.e., 1694933194816 + 526298015296 = 1301896^2 + 725464^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is not an unprimeable number, because it can be changed into a prime (2221231210117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8676684287 + ... + 8676684542.

Almost surely, 2^{2221231210112} is an apocalyptic number.

It is an amenable number.

2221231210112 is a deficient number, since it is larger than the sum of its proper divisors (2203877841538).

2221231210112 is an equidigital number, since it uses as much as digits as its factorization.

2221231210112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17353368843 (or 17353368831 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 2221231210112 its reverse (2110121321222), we get a palindrome (4331352531334).

The spelling of 2221231210112 in words is "two trillion, two hundred twenty-one billion, two hundred thirty-one million, two hundred ten thousand, one hundred twelve".