2001131122 has 16 divisors (see below), whose sum is σ = 3021397632. Its totient is φ = 994014000.

The previous prime is 2001131117. The next prime is 2001131131. The reversal of 2001131122 is 2211311002.

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, 292513 + ... + 299275.

It is an arithmetic number, because the mean of its divisors is an integer number (188837352).

Almost surely, 2^2001131122 is an apocalyptic number.

2001131122 is a deficient number, since it is larger than the sum of its proper divisors (1020266510).

2001131122 is a wasteful number, since it uses less digits than its factorization.

2001131122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7713.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 2001131122 is about 44734.0040908479. The cubic root of 2001131122 is about 1260.1585258677.

Adding to 2001131122 its reverse (2211311002), we get a palindrome (4212442124).

The spelling of 2001131122 in words is "two billion, one million, one hundred thirty-one thousand, one hundred twenty-two".