133220223234 has 120 divisors (see below), whose sum is σ = 349551436608. Its totient is φ = 37810508400.

The previous prime is 133220223233. The next prime is 133220223251. The reversal of 133220223234 is 432322022331.

133220223234 is a `hidden beast` number, since 1 + 332 + 2 + 0 + 2 + 2 + 323 + 4 = 666.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 133220223198 and 133220223207.

It is not an unprimeable number, because it can be changed into a prime (133220223233) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 1143067 + ... + 1254209.

Almost surely, 2^133220223234 is an apocalyptic number.

133220223234 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 133220223234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174775718304).

133220223234 is an abundant number, since it is smaller than the sum of its proper divisors (216331213374).

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

133220223234 is a wasteful number, since it uses less digits than its factorization.

133220223234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111322 (or 111306 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 133220223234 its reverse (432322022331), we get a palindrome (565542245565).

The spelling of 133220223234 in words is "one hundred thirty-three billion, two hundred twenty million, two hundred twenty-three thousand, two hundred thirty-four".