2001000122 has 16 divisors (see below), whose sum is σ = 3276528192. Its totient is φ = 908944320.

The previous prime is 2001000101. The next prime is 2001000139. The reversal of 2001000122 is 2210001002.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4883 + ... + 63449.

It is an arithmetic number, because the mean of its divisors is an integer number (204783012).

Almost surely, 2^2001000122 is an apocalyptic number.

2001000122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2001000122 is a deficient number, since it is larger than the sum of its proper divisors (1275528070).

2001000122 is a wasteful number, since it uses less digits than its factorization.

2001000122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60133.

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 2001000122 is about 44732.5398563507. The cubic root of 2001000122 is about 1260.1310273583.

Adding to 2001000122 its reverse (2210001002), we get a palindrome (4211001124).

The spelling of 2001000122 in words is "two billion, one million, one hundred twenty-two", and thus it is an aban number.