221411331123 has 16 divisors (see below), whose sum is σ = 307726214400. Its totient is φ = 141429710240.

The previous prime is 221411331121. The next prime is 221411331157. The reversal of 221411331123 is 321133114122.

It is not a de Polignac number, because 221411331123 - 2¹ = 221411331121 is a prime.

It is a super-2 number, since 2×221411331123² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 221411331093 and 221411331102.

It is not an unprimeable number, because it can be changed into a prime (221411331121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9702183 + ... + 9724976.

It is an arithmetic number, because the mean of its divisors is an integer number (19232888400).

Almost surely, 2^221411331123 is an apocalyptic number.

221411331123 is a deficient number, since it is larger than the sum of its proper divisors (86314883277).

221411331123 is a wasteful number, since it uses less digits than its factorization.

221411331123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19427322.

The product of its digits is 864, while the sum is 24.

Adding to 221411331123 its reverse (321133114122), we get a palindrome (542544445245).

The spelling of 221411331123 in words is "two hundred twenty-one billion, four hundred eleven million, three hundred thirty-one thousand, one hundred twenty-three".