221232413112 has 16 divisors (see below), whose sum is σ = 553081032840. Its totient is φ = 73744137696.

The previous prime is 221232413107. The next prime is 221232413117. The reversal of 221232413112 is 211314232122.

It is an interprime number because it is at equal distance from previous prime (221232413107) and next prime (221232413117).

It is a super-2 number, since 2×221232413112² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 9218017213 = 221232413112 / (2 + 2 + 1 + 2 + 3 + 2 + 4 + 1 + 3 + 1 + 1 + 2).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221232413117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4609008583 + ... + 4609008630.

Almost surely, 2^221232413112 is an apocalyptic number.

It is an amenable number.

221232413112 is an abundant number, since it is smaller than the sum of its proper divisors (331848619728).

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

221232413112 is a wasteful number, since it uses less digits than its factorization.

221232413112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9218017222 (or 9218017218 counting only the distinct ones).

The product of its digits is 1152, while the sum is 24.

Adding to 221232413112 its reverse (211314232122), we get a palindrome (432546645234).

The spelling of 221232413112 in words is "two hundred twenty-one billion, two hundred thirty-two million, four hundred thirteen thousand, one hundred twelve".