2001022532 has 12 divisors (see below), whose sum is σ = 3532779516. Its totient is φ = 991656960.

The previous prime is 2001022489. The next prime is 2001022549. The reversal of 2001022532 is 2352201002.

It can be written as a sum of positive squares in 2 ways, for example, as 1119170116 + 881852416 = 33454^2 + 29696^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2001022532.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2213069 + ... + 2213972.

It is an arithmetic number, because the mean of its divisors is an integer number (294398293).

Almost surely, 2^2001022532 is an apocalyptic number.

It is an amenable number.

2001022532 is a deficient number, since it is larger than the sum of its proper divisors (1531756984).

2001022532 is a wasteful number, since it uses less digits than its factorization.

2001022532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4427158 (or 4427156 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 2001022532 is about 44732.7903444442. The cubic root of 2001022532 is about 1260.1357315777.

Adding to 2001022532 its reverse (2352201002), we get a palindrome (4353223534).

The spelling of 2001022532 in words is "two billion, one million, twenty-two thousand, five hundred thirty-two".