4151233221 has 12 divisors (see below), whose sum is σ = 5841626112. Its totient is φ = 2621830824.

The previous prime is 4151233189. The next prime is 4151233237. The reversal of 4151233221 is 1223321514.

It is not a de Polignac number, because 4151233221 - 2⁵ = 4151233189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4151233191 and 4151233200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4151233271) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1915461 + ... + 1917626.

It is an arithmetic number, because the mean of its divisors is an integer number (486802176).

Almost surely, 2^4151233221 is an apocalyptic number.

It is an amenable number.

4151233221 is a deficient number, since it is larger than the sum of its proper divisors (1690392891).

4151233221 is a wasteful number, since it uses less digits than its factorization.

4151233221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3833128 (or 3833109 counting only the distinct ones).

The product of its digits is 1440, while the sum is 24.

The square root of 4151233221 is about 64430.0645739239. The cubic root of 4151233221 is about 1607.1597391959.

Adding to 4151233221 its reverse (1223321514), we get a palindrome (5374554735).

The spelling of 4151233221 in words is "four billion, one hundred fifty-one million, two hundred thirty-three thousand, two hundred twenty-one".