223100420123421 has 24 divisors (see below), whose sum is σ = 329667608744760. Its totient is φ = 145350330218496.

The previous prime is 223100420123417. The next prime is 223100420123443. The reversal of 223100420123421 is 124321024001322.

223100420123421 is a `hidden beast` number, since 2 + 2 + 3 + 1 + 0 + 0 + 420 + 1 + 234 + 2 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 30822982904025 + 192277437219396 = 5551845^2 + 13866414^2 .

It is not a de Polignac number, because 223100420123421 - 2² = 223100420123417 is a prime.

It is a super-3 number, since 3×223100420123421³ (a number of 44 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223100420121421) 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, 1557609396 + ... + 1557752621.

It is an arithmetic number, because the mean of its divisors is an integer number (13736150364365).

Almost surely, 2^{223100420123421} is an apocalyptic number.

It is an amenable number.

223100420123421 is a deficient number, since it is larger than the sum of its proper divisors (106567188621339).

223100420123421 is a wasteful number, since it uses less digits than its factorization.

223100420123421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3115362205 (or 3115362202 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 223100420123421 its reverse (124321024001322), we get a palindrome (347421444124743).

The spelling of 223100420123421 in words is "two hundred twenty-three trillion, one hundred billion, four hundred twenty million, one hundred twenty-three thousand, four hundred twenty-one".