2001102222112 has 24 divisors (see below), whose sum is σ = 4502480000256. Its totient is φ = 857615237952.

The previous prime is 2001102222107. The next prime is 2001102222113. The reversal of 2001102222112 is 2112222011002.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (2001102222113) 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, 4466745808 + ... + 4466746255.

It is an arithmetic number, because the mean of its divisors is an integer number (187603333344).

Almost surely, 2^{2001102222112} is an apocalyptic number.

It is an amenable number.

2001102222112 is an abundant number, since it is smaller than the sum of its proper divisors (2501377778144).

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

2001102222112 is an equidigital number, since it uses as much as digits as its factorization.

2001102222112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8933492080 (or 8933492072 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2001102222112 its reverse (2112222011002), we get a palindrome (4113324233114).

The spelling of 2001102222112 in words is "two trillion, one billion, one hundred two million, two hundred twenty-two thousand, one hundred twelve".