223240121001 has 12 divisors (see below), whose sum is σ = 322518897012. Its totient is φ = 148798619136.

The previous prime is 223240120979. The next prime is 223240121017. The reversal of 223240121001 is 100121042322.

It is a happy number.

223240121001 is a `hidden beast` number, since 22 + 32 + 401 + 210 + 0 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 86118771600 + 137121349401 = 293460^2 + 370299^2 .

It is not a de Polignac number, because 223240121001 - 2⁶ = 223240120937 is a prime.

It is a super-3 number, since 3×223240121001³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (223240121101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2293696 + ... + 2389041.

It is an arithmetic number, because the mean of its divisors is an integer number (26876574751).

Almost surely, 2^223240121001 is an apocalyptic number.

It is an amenable number.

223240121001 is a deficient number, since it is larger than the sum of its proper divisors (99278776011).

223240121001 is a wasteful number, since it uses less digits than its factorization.

223240121001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4688040 (or 4688037 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 223240121001 its reverse (100121042322), we get a palindrome (323361163323).

The spelling of 223240121001 in words is "two hundred twenty-three billion, two hundred forty million, one hundred twenty-one thousand, one".