2001022220112 has 40 divisors (see below), whose sum is σ = 5169383659104. Its totient is φ = 666997567104.

The previous prime is 2001022220053. The next prime is 2001022220117. The reversal of 2001022220112 is 2110222201002.

It is a super-3 number, since 3×2001022220112³ (a number of 38 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2001022220091 and 2001022220100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001022220117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3454803 + ... + 3992205.

Almost surely, 2^{2001022220112} is an apocalyptic number.

It is an amenable number.

2001022220112 is an abundant number, since it is smaller than the sum of its proper divisors (3168361438992).

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

2001022220112 is a wasteful number, since it uses less digits than its factorization.

2001022220112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614987 (or 614981 counting only the distinct ones).

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

Adding to 2001022220112 its reverse (2110222201002), we get a palindrome (4111244421114).

The spelling of 2001022220112 in words is "two trillion, one billion, twenty-two million, two hundred twenty thousand, one hundred twelve".