4221201432 has 48 divisors (see below), whose sum is σ = 12275946360. Its totient is φ = 1206057216.

The previous prime is 4221201409. The next prime is 4221201451. The reversal of 4221201432 is 2341021224.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 4221201399 and 4221201408.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1793553 + ... + 1795904.

Almost surely, 2^4221201432 is an apocalyptic number.

4221201432 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

4221201432 is an abundant number, since it is smaller than the sum of its proper divisors (8054744928).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4221201432 is a wasteful number, since it uses less digits than its factorization.

4221201432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3589480 (or 3589469 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 4221201432 is about 64970.7736755535. The cubic root of 4221201432 is about 1616.1389317455.

Adding to 4221201432 its reverse (2341021224), we get a palindrome (6562222656).

The spelling of 4221201432 in words is "four billion, two hundred twenty-one million, two hundred one thousand, four hundred thirty-two".