12111012221210 has 32 divisors (see below), whose sum is σ = 24929118178560. Its totient is φ = 4149841064832.

The previous prime is 12111012221171. The next prime is 12111012221257. The reversal of 12111012221210 is 1212221011121.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52091150 + ... + 52323129.

It is an arithmetic number, because the mean of its divisors is an integer number (779034943080).

Almost surely, 2^{12111012221210} is an apocalyptic number.

12111012221210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12111012221210 is an abundant number, since it is smaller than the sum of its proper divisors (12818105957350).

12111012221210 is a wasteful number, since it uses less digits than its factorization.

12111012221210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104415950.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 12111012221210 its reverse (1212221011121), we get a palindrome (13323233232331).

The spelling of 12111012221210 in words is "twelve trillion, one hundred eleven billion, twelve million, two hundred twenty-one thousand, two hundred ten".