2221201112112 has 100 divisors (see below), whose sum is σ = 6430111839360. Its totient is φ = 740249338752.

The previous prime is 2221201112107. The next prime is 2221201112147. The reversal of 2221201112112 is 2112111021222.

2221201112112 is a `hidden beast` number, since 222 + 120 + 111 + 211 + 2 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6272689 + ... + 6617327.

Almost surely, 2^{2221201112112} is an apocalyptic number.

It is an amenable number.

2221201112112 is an abundant number, since it is smaller than the sum of its proper divisors (4208910727248).

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

2221201112112 is a wasteful number, since it uses less digits than its factorization.

2221201112112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349632 (or 349617 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 2221201112112 its reverse (2112111021222), we get a palindrome (4333312133334).

The spelling of 2221201112112 in words is "two trillion, two hundred twenty-one billion, two hundred one million, one hundred twelve thousand, one hundred twelve".