2001122 has 8 divisors (see below), whose sum is σ = 3021276. Its totient is φ = 994032.

The previous prime is 2001101. The next prime is 2001127. The reversal of 2001122 is 2211002.

It can be written as a sum of positive squares in 2 ways, for example, as 1990921 + 10201 = 1411^2 + 101^2 .

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

It is not an unprimeable number, because it can be changed into a prime (2001127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2873 + ... + 3500.

2^2001122 is an apocalyptic number.

2001122 is a deficient number, since it is larger than the sum of its proper divisors (1020154).

2001122 is a wasteful number, since it uses less digits than its factorization.

2001122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6532.

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

The square root of 2001122 is about 1414.6101936576. The cubic root of 2001122 is about 126.0156611087.

Adding to 2001122 its reverse (2211002), we get a palindrome (4212124).

The spelling of 2001122 in words is "two million, one thousand, one hundred twenty-two".