11200121210238 has 64 divisors (see below), whose sum is σ = 22756352025600. Its totient is φ = 3674422062080.

The previous prime is 11200121210237. The next prime is 11200121210249. The reversal of 11200121210238 is 83201212100211.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11200121210237) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 323004070 + ... + 323038742.

It is an arithmetic number, because the mean of its divisors is an integer number (355568000400).

Almost surely, 2^{11200121210238} is an apocalyptic number.

11200121210238 is an abundant number, since it is smaller than the sum of its proper divisors (11556230815362).

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

11200121210238 is a wasteful number, since it uses less digits than its factorization.

11200121210238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37537.

The product of its (nonzero) digits is 384, while the sum is 24.

Adding to 11200121210238 its reverse (83201212100211), we get a palindrome (94401333310449).

The spelling of 11200121210238 in words is "eleven trillion, two hundred billion, one hundred twenty-one million, two hundred ten thousand, two hundred thirty-eight".