2011223001 has 16 divisors (see below), whose sum is σ = 2727014400. Its totient is φ = 1318266768.

The previous prime is 2011222987. The next prime is 2011223021. The reversal of 2011223001 is 1003221102.

It is not a de Polignac number, because 2011223001 - 2²² = 2007028697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2011223021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38890 + ... + 74396.

It is an arithmetic number, because the mean of its divisors is an integer number (170438400).

Almost surely, 2^2011223001 is an apocalyptic number.

It is an amenable number.

2011223001 is a deficient number, since it is larger than the sum of its proper divisors (715791399).

2011223001 is a wasteful number, since it uses less digits than its factorization.

2011223001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35828.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 2011223001 is about 44846.6609793862. The cubic root of 2011223001 is about 1262.2733379449.

Adding to 2011223001 its reverse (1003221102), we get a palindrome (3014444103).

The spelling of 2011223001 in words is "two billion, eleven million, two hundred twenty-three thousand, one".