2001220202 has 8 divisors (see below), whose sum is σ = 3132344736. Its totient is φ = 957105292.

The previous prime is 2001220181. The next prime is 2001220211. The reversal of 2001220202 is 2020221002.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 21752348 + ... + 21752439.

It is an arithmetic number, because the mean of its divisors is an integer number (391543092).

Almost surely, 2^2001220202 is an apocalyptic number.

2001220202 is a deficient number, since it is larger than the sum of its proper divisors (1131124534).

2001220202 is a wasteful number, since it uses less digits than its factorization.

2001220202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43504812.

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 2001220202 is about 44734.9997429306. Note that the first 3 decimals coincide. The cubic root of 2001220202 is about 1260.1772241687.

Adding to 2001220202 its reverse (2020221002), we get a palindrome (4021441204).

The spelling of 2001220202 in words is "two billion, one million, two hundred twenty thousand, two hundred two".