2204111421 has 24 divisors (see below), whose sum is σ = 3373601400. Its totient is φ = 1381902336.

The previous prime is 2204111419. The next prime is 2204111431. The reversal of 2204111421 is 1241114022.

2204111421 is a `hidden beast` number, since 220 + 411 + 14 + 21 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 552908196 + 1651203225 = 23514^2 + 40635^2 .

It is not a de Polignac number, because 2204111421 - 2¹ = 2204111419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2204111394 and 2204111403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2204111401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 223605 + ... + 233253.

It is an arithmetic number, because the mean of its divisors is an integer number (140566725).

Almost surely, 2^2204111421 is an apocalyptic number.

It is an amenable number.

2204111421 is a deficient number, since it is larger than the sum of its proper divisors (1169489979).

2204111421 is a wasteful number, since it uses less digits than its factorization.

2204111421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11165 (or 11162 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 2204111421 is about 46947.9650357713. The cubic root of 2204111421 is about 1301.4011364564.

Adding to 2204111421 its reverse (1241114022), we get a palindrome (3445225443).

The spelling of 2204111421 in words is "two billion, two hundred four million, one hundred eleven thousand, four hundred twenty-one".