221034224123 has 16 divisors (see below), whose sum is σ = 235961905920. Its totient is φ = 206453896416.

The previous prime is 221034224119. The next prime is 221034224207. The reversal of 221034224123 is 321422430122.

It is a cyclic number.

It is not a de Polignac number, because 221034224123 - 2² = 221034224119 is a prime.

It is a super-2 number, since 2×221034224123² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 221034224092 and 221034224101.

It is not an unprimeable number, because it can be changed into a prime (221034224423) 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, 195461 + ... + 693017.

It is an arithmetic number, because the mean of its divisors is an integer number (14747619120).

Almost surely, 2^221034224123 is an apocalyptic number.

221034224123 is a deficient number, since it is larger than the sum of its proper divisors (14927681797).

221034224123 is a wasteful number, since it uses less digits than its factorization.

221034224123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497906.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 221034224123 its reverse (321422430122), we get a palindrome (542456654245).

The spelling of 221034224123 in words is "two hundred twenty-one billion, thirty-four million, two hundred twenty-four thousand, one hundred twenty-three".