223112204421 has 32 divisors (see below), whose sum is σ = 313660139520. Its totient is φ = 140790032064.

The previous prime is 223112204411. The next prime is 223112204437. The reversal of 223112204421 is 124402211322.

It is not a de Polignac number, because 223112204421 - 2¹⁰ = 223112203397 is a prime.

It is a super-3 number, since 3×223112204421³ (a number of 35 digits) contains 333 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 223112204391 and 223112204400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223112204411) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10358355 + ... + 10379871.

It is an arithmetic number, because the mean of its divisors is an integer number (9801879360).

Almost surely, 2^223112204421 is an apocalyptic number.

It is an amenable number.

223112204421 is a deficient number, since it is larger than the sum of its proper divisors (90547935099).

223112204421 is a wasteful number, since it uses less digits than its factorization.

223112204421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23105.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 223112204421 its reverse (124402211322), we get a palindrome (347514415743).

The spelling of 223112204421 in words is "two hundred twenty-three billion, one hundred twelve million, two hundred four thousand, four hundred twenty-one".