133000222240 has 96 divisors (see below), whose sum is σ = 325602834480. Its totient is φ = 51277922304.

The previous prime is 133000222169. The next prime is 133000222249. The reversal of 133000222240 is 42222000331.

It can be written as a sum of positive squares in 8 ways, for example, as 92924986896 + 40075235344 = 304836^2 + 200188^2 .

It is not an unprimeable number, because it can be changed into a prime (133000222249) 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, 2727352 + ... + 2775688.

Almost surely, 2^133000222240 is an apocalyptic number.

133000222240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133000222240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162801417240).

133000222240 is an abundant number, since it is smaller than the sum of its proper divisors (192602612240).

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

133000222240 is a wasteful number, since it uses less digits than its factorization.

133000222240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48974 (or 48966 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 133000222240 its reverse (42222000331), we get a palindrome (175222222571).

The spelling of 133000222240 in words is "one hundred thirty-three billion, two hundred twenty-two thousand, two hundred forty".