2001120022 has 12 divisors (see below), whose sum is σ = 3299367708. Its totient is φ = 909599900.

The previous prime is 2001120013. The next prime is 2001120047. The reversal of 2001120022 is 2200211002.

It is a junction number, because it is equal to n+sod(n) for n = 2001119990 and 2001120008.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4134304 + ... + 4134787.

It is an arithmetic number, because the mean of its divisors is an integer number (274947309).

Almost surely, 2^2001120022 is an apocalyptic number.

2001120022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2001120022 is a deficient number, since it is larger than the sum of its proper divisors (1298247686).

2001120022 is a wasteful number, since it uses less digits than its factorization.

2001120022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8269115 (or 8269104 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 2001120022 is about 44733.8800239818. The cubic root of 2001120022 is about 1260.1561958879.

Adding to 2001120022 its reverse (2200211002), we get a palindrome (4201331024).

The spelling of 2001120022 in words is "two billion, one million, one hundred twenty thousand, twenty-two".