223121131110001 has 8 divisors (see below), whose sum is σ = 228564247721544. Its totient is φ = 217678068679680.

The previous prime is 223121131109951. The next prime is 223121131110061. The reversal of 223121131110001 is 100011131121322.

It can be written as a sum of positive squares in 4 ways, for example, as 485636159376 + 222635494950625 = 696876^2 + 14920975^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 223121131110001 - 2¹⁷ = 223121130978929 is a prime.

It is a super-3 number, since 3×223121131110001³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223121131110061) 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, 5145976 + ... + 21742201.

It is an arithmetic number, because the mean of its divisors is an integer number (28570530965193).

Almost surely, 2^{223121131110001} is an apocalyptic number.

It is an amenable number.

223121131110001 is a deficient number, since it is larger than the sum of its proper divisors (5443116611543).

223121131110001 is a wasteful number, since it uses less digits than its factorization.

223121131110001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27090611.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 223121131110001 its reverse (100011131121322), we get a palindrome (323132262231323).

The spelling of 223121131110001 in words is "two hundred twenty-three trillion, one hundred twenty-one billion, one hundred thirty-one million, one hundred ten thousand, one".