201104421 has 16 divisors (see below), whose sum is σ = 313572864. Its totient is φ = 112243824.

The previous prime is 201104411. The next prime is 201104443. The reversal of 201104421 is 124401102.

It is not a de Polignac number, because 201104421 - 2⁵ = 201104389 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201104421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201104401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110451 + ... + 112256.

It is an arithmetic number, because the mean of its divisors is an integer number (19598304).

Almost surely, 2^201104421 is an apocalyptic number.

201104421 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

201104421 is a deficient number, since it is larger than the sum of its proper divisors (112468443).

201104421 is a wasteful number, since it uses less digits than its factorization.

201104421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222760.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 201104421 is about 14181.1290453193. The cubic root of 201104421 is about 585.8780211426.

Adding to 201104421 its reverse (124401102), we get a palindrome (325505523).

It can be divided in two parts, 20110 and 4421, that added together give a triangular number (24531 = T₂₂₁).

The spelling of 201104421 in words is "two hundred one million, one hundred four thousand, four hundred twenty-one".