223141421 has 8 divisors (see below), whose sum is σ = 227429400. Its totient is φ = 218894400.

The previous prime is 223141411. The next prime is 223141447. The reversal of 223141421 is 124141322.

It can be written as a sum of positive squares in 4 ways, for example, as 143664196 + 79477225 = 11986^2 + 8915^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-223141421 is a prime.

It is a super-3 number, since 3×223141421³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 223141393 and 223141402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223141411) 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, 875 + ... + 21143.

It is an arithmetic number, because the mean of its divisors is an integer number (28428675).

Almost surely, 2^223141421 is an apocalyptic number.

It is an amenable number.

223141421 is a deficient number, since it is larger than the sum of its proper divisors (4287979).

223141421 is a wasteful number, since it uses less digits than its factorization.

223141421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20479.

The product of its digits is 384, while the sum is 20.

The square root of 223141421 is about 14937.9188978920. The cubic root of 223141421 is about 606.5408629304.

Adding to 223141421 its reverse (124141322), we get a palindrome (347282743).

Subtracting from 223141421 its reverse (124141322), we obtain a palindrome (99000099).

The spelling of 223141421 in words is "two hundred twenty-three million, one hundred forty-one thousand, four hundred twenty-one".