2221001122112 has 28 divisors (see below), whose sum is σ = 4460399101536. Its totient is φ = 1097121033600.

The previous prime is 2221001122111. The next prime is 2221001122129. The reversal of 2221001122112 is 2112211001222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221001122111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209049764 + ... + 209060387.

It is an arithmetic number, because the mean of its divisors is an integer number (159299967912).

Almost surely, 2^{2221001122112} is an apocalyptic number.

It is an amenable number.

2221001122112 is an abundant number, since it is smaller than the sum of its proper divisors (2239397979424).

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

2221001122112 is an equidigital number, since it uses as much as digits as its factorization.

2221001122112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418110246 (or 418110236 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2221001122112 its reverse (2112211001222), we get a palindrome (4333212123334).

The spelling of 2221001122112 in words is "two trillion, two hundred twenty-one billion, one million, one hundred twenty-two thousand, one hundred twelve".