2001224151 has 10 divisors (see below), whose sum is σ = 2989483112. Its totient is φ = 1334149380.

The previous prime is 2001224149. The next prime is 2001224177. The reversal of 2001224151 is 1514221002.

It is not a de Polignac number, because 2001224151 - 2¹ = 2001224149 is a prime.

It is a Duffinian number.

It is a congruent 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 9 ways as a sum of consecutive naturals, for example, 12353155 + ... + 12353316.

Almost surely, 2^2001224151 is an apocalyptic number.

2001224151 is a deficient number, since it is larger than the sum of its proper divisors (988258961).

2001224151 is an equidigital number, since it uses as much as digits as its factorization.

2001224151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24706483 (or 24706474 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 2001224151 is about 44735.0438806089. The cubic root of 2001224151 is about 1260.1780530691.

Adding to 2001224151 its reverse (1514221002), we get a palindrome (3515445153).

The spelling of 2001224151 in words is "two billion, one million, two hundred twenty-four thousand, one hundred fifty-one".