200011221234 has 192 divisors, whose sum is σ = 493966107648. Its totient is φ = 57952540800.

The previous prime is 200011221233. The next prime is 200011221283. The reversal of 200011221234 is 432122110002.

It is a happy number.

200011221234 is a `hidden beast` number, since 200 + 0 + 11 + 221 + 234 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (200011221233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 292841857 + ... + 292842539.

It is an arithmetic number, because the mean of its divisors is an integer number (2572740144).

Almost surely, 2^200011221234 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 200011221234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (246983053824).

200011221234 is an abundant number, since it is smaller than the sum of its proper divisors (293954886414).

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

200011221234 is a wasteful number, since it uses less digits than its factorization.

200011221234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1373 (or 1370 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 200011221234 its reverse (432122110002), we get a palindrome (632133331236).

The spelling of 200011221234 in words is "two hundred billion, eleven million, two hundred twenty-one thousand, two hundred thirty-four".