2001122232 has 32 divisors (see below), whose sum is σ = 5077478400. Its totient is φ = 657084384.

The previous prime is 2001122143. The next prime is 2001122251. The reversal of 2001122232 is 2322211002.

It is a happy number.

It is a congruent number.

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, 620632 + ... + 623847.

It is an arithmetic number, because the mean of its divisors is an integer number (158671200).

Almost surely, 2^2001122232 is an apocalyptic number.

It is an amenable number.

2001122232 is an abundant number, since it is smaller than the sum of its proper divisors (3076356168).

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

2001122232 is a wasteful number, since it uses less digits than its factorization.

2001122232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1244555 (or 1244551 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 2001122232 is about 44733.9047256105. The cubic root of 2001122232 is about 1260.1566597855.

Adding to 2001122232 its reverse (2322211002), we get a palindrome (4323333234).

The spelling of 2001122232 in words is "two billion, one million, one hundred twenty-two thousand, two hundred thirty-two".