2012220001 has 4 divisors (see below), whose sum is σ = 2195149104. Its totient is φ = 1829290900.

The previous prime is 2012219987. The next prime is 2012220019. The reversal of 2012220001 is 1000222102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2012220001 - 2¹⁷ = 2012088929 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2012220001.

It is not an unprimeable number, because it can be changed into a prime (2012220031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91464535 + ... + 91464556.

It is an arithmetic number, because the mean of its divisors is an integer number (548787276).

Almost surely, 2^2012220001 is an apocalyptic number.

It is an amenable number.

2012220001 is a deficient number, since it is larger than the sum of its proper divisors (182929103).

2012220001 is a wasteful number, since it uses less digits than its factorization.

2012220001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182929102.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 2012220001 is about 44857.7752569162. The cubic root of 2012220001 is about 1262.4818808104.

Adding to 2012220001 its reverse (1000222102), we get a palindrome (3012442103).

The spelling of 2012220001 in words is "two billion, twelve million, two hundred twenty thousand, one".