2001224105 has 16 divisors (see below), whose sum is σ = 2578552704. Its totient is φ = 1485576960.

The previous prime is 2001224101. The next prime is 2001224107. The reversal of 2001224105 is 5014221002.

It is not a de Polignac number, because 2001224105 - 2² = 2001224101 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2001224101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159767 + ... + 171836.

It is an arithmetic number, because the mean of its divisors is an integer number (161159544).

Almost surely, 2^2001224105 is an apocalyptic number.

It is an amenable number.

2001224105 is a deficient number, since it is larger than the sum of its proper divisors (577328599).

2001224105 is a wasteful number, since it uses less digits than its factorization.

2001224105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331696.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 2001224105 is about 44735.0433664705. The cubic root of 2001224105 is about 1260.1780434136.

Adding to 2001224105 its reverse (5014221002), we get a palindrome (7015445107).

The spelling of 2001224105 in words is "two billion, one million, two hundred twenty-four thousand, one hundred five".