4221231554 has 16 divisors (see below), whose sum is σ = 6348045600. Its totient is φ = 2105224704.

The previous prime is 4221231491. The next prime is 4221231557. The reversal of 4221231554 is 4551321224.

It is not an unprimeable number, because it can be changed into a prime (4221231557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2081489 + ... + 2083515.

It is an arithmetic number, because the mean of its divisors is an integer number (396752850).

Almost surely, 2^4221231554 is an apocalyptic number.

4221231554 is a deficient number, since it is larger than the sum of its proper divisors (2126814046).

4221231554 is a wasteful number, since it uses less digits than its factorization.

4221231554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4177.

The product of its digits is 9600, while the sum is 29.

The square root of 4221231554 is about 64971.0054870632. The cubic root of 4221231554 is about 1616.1427759292.

Adding to 4221231554 its reverse (4551321224), we get a palindrome (8772552778).

The spelling of 4221231554 in words is "four billion, two hundred twenty-one million, two hundred thirty-one thousand, five hundred fifty-four".