234442111212 has 120 divisors (see below), whose sum is σ = 633671530800. Its totient is φ = 75524400000.

The previous prime is 234442111201. The next prime is 234442111217. The reversal of 234442111212 is 212111244432.

234442111212 is a `hidden beast` number, since 2 + 3 + 4 + 442 + 1 + 1 + 1 + 212 = 666.

It is a super-2 number, since 2×234442111212² (a number of 24 digits) contains 22 as substring.

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

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

It is not an unprimeable number, because it can be changed into a prime (234442111217) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1720587 + ... + 1851837.

It is an arithmetic number, because the mean of its divisors is an integer number (5280596090).

Almost surely, 2^234442111212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 234442111212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (316835765400).

234442111212 is an abundant number, since it is smaller than the sum of its proper divisors (399229419588).

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

234442111212 is a wasteful number, since it uses less digits than its factorization.

234442111212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131453 (or 131442 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

Adding to 234442111212 its reverse (212111244432), we get a palindrome (446553355644).

The spelling of 234442111212 in words is "two hundred thirty-four billion, four hundred forty-two million, one hundred eleven thousand, two hundred twelve".