4221213400 has 24 divisors (see below), whose sum is σ = 9814321620. Its totient is φ = 1688485280.

The previous prime is 4221213389. The next prime is 4221213431. The reversal of 4221213400 is 43121224.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10552834 + ... + 10553233.

Almost surely, 2^4221213400 is an apocalyptic number.

4221213400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4221213400 is an abundant number, since it is smaller than the sum of its proper divisors (5593108220).

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

4221213400 is a wasteful number, since it uses less digits than its factorization.

4221213400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21106083 (or 21106074 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 4221213400 is about 64970.8657784395. The cubic root of 4221213400 is about 1616.1404591094.

Adding to 4221213400 its reverse (43121224), we get a palindrome (4264334624).

The spelling of 4221213400 in words is "four billion, two hundred twenty-one million, two hundred thirteen thousand, four hundred".