221233222134 has 32 divisors (see below), whose sum is σ = 492947468640. Its totient is φ = 73546694496.

The previous prime is 221233222129. The next prime is 221233222139. The reversal of 221233222134 is 431222332122.

221233222134 is a `hidden beast` number, since 2 + 2 + 123 + 322 + 213 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (221233222129) and next prime (221233222139).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 221233222098 and 221233222107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221233222139) 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, 5471697 + ... + 5511980.

It is an arithmetic number, because the mean of its divisors is an integer number (15404608395).

Almost surely, 2^221233222134 is an apocalyptic number.

221233222134 is an abundant number, since it is smaller than the sum of its proper divisors (271714246506).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221233222134 is a wasteful number, since it uses less digits than its factorization.

221233222134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10984061 (or 10984055 counting only the distinct ones).

The product of its digits is 6912, while the sum is 27.

Adding to 221233222134 its reverse (431222332122), we get a palindrome (652455554256).

The spelling of 221233222134 in words is "two hundred twenty-one billion, two hundred thirty-three million, two hundred twenty-two thousand, one hundred thirty-four".