400221103 has 8 divisors (see below), whose sum is σ = 407636208. Its totient is φ = 392867904.

The previous prime is 400221053. The next prime is 400221109. The reversal of 400221103 is 301122004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 400221103 - 2⁹ = 400220591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400221109) 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, 2326 + ... + 28387.

It is an arithmetic number, because the mean of its divisors is an integer number (50954526).

Almost surely, 2^400221103 is an apocalyptic number.

400221103 is a deficient number, since it is larger than the sum of its proper divisors (7415105).

400221103 is a wasteful number, since it uses less digits than its factorization.

400221103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30953.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 400221103 is about 20005.5268113589. The cubic root of 400221103 is about 736.9420331247.

Adding to 400221103 its reverse (301122004), we get a palindrome (701343107).

Subtracting from 400221103 its reverse (301122004), we obtain a palindrome (99099099).

The spelling of 400221103 in words is "four hundred million, two hundred twenty-one thousand, one hundred three".