11212120230 has 16 divisors (see below), whose sum is σ = 26909088624. Its totient is φ = 2989898720.

The previous prime is 11212120219. The next prime is 11212120237. The reversal of 11212120230 is 3202121211.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11212120237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 186868641 + ... + 186868700.

It is an arithmetic number, because the mean of its divisors is an integer number (1681818039).

Almost surely, 2^11212120230 is an apocalyptic number.

11212120230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11212120230 is an abundant number, since it is smaller than the sum of its proper divisors (15696968394).

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

11212120230 is a wasteful number, since it uses less digits than its factorization.

11212120230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373737351.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 11212120230 its reverse (3202121211), we get a palindrome (14414241441).

The spelling of 11212120230 in words is "eleven billion, two hundred twelve million, one hundred twenty thousand, two hundred thirty".