4231221434 has 64 divisors (see below), whose sum is σ = 7266115584. Its totient is φ = 1830600000.

The previous prime is 4231221431. The next prime is 4231221437. The reversal of 4231221434 is 4341221324.

It is an interprime number because it is at equal distance from previous prime (4231221431) and next prime (4231221437).

It is not an unprimeable number, because it can be changed into a prime (4231221431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18639629 + ... + 18639855.

It is an arithmetic number, because the mean of its divisors is an integer number (113533056).

Almost surely, 2^4231221434 is an apocalyptic number.

4231221434 is a deficient number, since it is larger than the sum of its proper divisors (3034894150).

4231221434 is a wasteful number, since it uses less digits than its factorization.

4231221434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 603.

The product of its digits is 4608, while the sum is 26.

The square root of 4231221434 is about 65047.8395798046. The cubic root of 4231221434 is about 1617.4166816372.

Adding to 4231221434 its reverse (4341221324), we get a palindrome (8572442758).

The spelling of 4231221434 in words is "four billion, two hundred thirty-one million, two hundred twenty-one thousand, four hundred thirty-four".