2001001122 has 24 divisors (see below), whose sum is σ = 4336878000. Its totient is φ = 666788760.

The previous prime is 2001001109. The next prime is 2001001147. The reversal of 2001001122 is 2211001002.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47097 + ... + 78867.

It is an arithmetic number, because the mean of its divisors is an integer number (180703250).

Almost surely, 2^2001001122 is an apocalyptic number.

2001001122 is an abundant number, since it is smaller than the sum of its proper divisors (2335876878).

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

2001001122 is a wasteful number, since it uses less digits than its factorization.

2001001122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35278 (or 35275 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 2001001122 is about 44732.5510338948. The cubic root of 2001001122 is about 1260.1312372751.

Adding to 2001001122 its reverse (2211001002), we get a palindrome (4212002124).

The spelling of 2001001122 in words is "two billion, one million, one thousand, one hundred twenty-two".