2001220302 has 16 divisors (see below), whose sum is σ = 4008241152. Its totient is φ = 666106680.

The previous prime is 2001220279. The next prime is 2001220303. The reversal of 2001220302 is 2030221002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001220303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 237198 + ... + 245489.

It is an arithmetic number, because the mean of its divisors is an integer number (250515072).

Almost surely, 2^2001220302 is an apocalyptic number.

2001220302 is an abundant number, since it is smaller than the sum of its proper divisors (2007020850).

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

2001220302 is a wasteful number, since it uses less digits than its factorization.

2001220302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483383.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 2001220302 is about 44735.0008606237. Note that the first 3 decimals coincide. The cubic root of 2001220302 is about 1260.1772451588.

Adding to 2001220302 its reverse (2030221002), we get a palindrome (4031441304).

The spelling of 2001220302 in words is "two billion, one million, two hundred twenty thousand, three hundred two".