2001120220122 has 8 divisors (see below), whose sum is σ = 4002240440256. Its totient is φ = 667040073372.

The previous prime is 2001120220081. The next prime is 2001120220147. The reversal of 2001120220122 is 2210220211002.

It is a sphenic number, since it is the product of 3 distinct primes.

2001120220122 is an admirable number.

It is a super-2 number, since 2×2001120220122² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166760018338 + ... + 166760018349.

It is an arithmetic number, because the mean of its divisors is an integer number (500280055032).

Almost surely, 2^{2001120220122} is an apocalyptic number.

2001120220122 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2001120220122 is a wasteful number, since it uses less digits than its factorization.

2001120220122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333520036692.

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

Adding to 2001120220122 its reverse (2210220211002), we get a palindrome (4211340431124).

The spelling of 2001120220122 in words is "two trillion, one billion, one hundred twenty million, two hundred twenty thousand, one hundred twenty-two".