2001020222112 has 24 divisors (see below), whose sum is σ = 5252678083296. Its totient is φ = 667006740672.

The previous prime is 2001020222063. The next prime is 2001020222137. The reversal of 2001020222112 is 2112220201002.

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 2001020222091 and 2001020222100.

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, 10421980228 + ... + 10421980419.

It is an arithmetic number, because the mean of its divisors is an integer number (218861586804).

Almost surely, 2^{2001020222112} is an apocalyptic number.

It is an amenable number.

2001020222112 is an abundant number, since it is smaller than the sum of its proper divisors (3251657861184).

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

2001020222112 is a wasteful number, since it uses less digits than its factorization.

2001020222112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20843960660 (or 20843960652 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 2001020222112 its reverse (2112220201002), we get a palindrome (4113240423114).

The spelling of 2001020222112 in words is "two trillion, one billion, twenty million, two hundred twenty-two thousand, one hundred twelve".