11212021110234 has 16 divisors (see below), whose sum is σ = 25627476823488. Its totient is φ = 3203434602912.

The previous prime is 11212021110233. The next prime is 11212021110259. The reversal of 11212021110234 is 43201112021211.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 11212021110234.

It is not an unprimeable number, because it can be changed into a prime (11212021110233) 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 7 ways as a sum of consecutive naturals, for example, 133476441747 + ... + 133476441830.

It is an arithmetic number, because the mean of its divisors is an integer number (1601717301468).

Almost surely, 2^{11212021110234} is an apocalyptic number.

11212021110234 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

11212021110234 is an abundant number, since it is smaller than the sum of its proper divisors (14415455713254).

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

11212021110234 is a wasteful number, since it uses less digits than its factorization.

11212021110234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266952883589.

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 11212021110234 its reverse (43201112021211), we get a palindrome (54413133131445).

The spelling of 11212021110234 in words is "eleven trillion, two hundred twelve billion, twenty-one million, one hundred ten thousand, two hundred thirty-four".