12112021011210 has 16 divisors (see below), whose sum is σ = 29068850426976. Its totient is φ = 3229872269648.

The previous prime is 12112021011203. The next prime is 12112021011221. The reversal of 12112021011210 is 1211012021121.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 12112021011210.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 201867016824 + ... + 201867016883.

It is an arithmetic number, because the mean of its divisors is an integer number (1816803151686).

Almost surely, 2^{12112021011210} is an apocalyptic number.

12112021011210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12112021011210 is an abundant number, since it is smaller than the sum of its proper divisors (16956829415766).

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

12112021011210 is a wasteful number, since it uses less digits than its factorization.

12112021011210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403734033717.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 12112021011210 its reverse (1211012021121), we get a palindrome (13323033032331).

The spelling of 12112021011210 in words is "twelve trillion, one hundred twelve billion, twenty-one million, eleven thousand, two hundred ten".