12102212011021 has 16 divisors (see below), whose sum is σ = 13258092856320. Its totient is φ = 10955614181680.

The previous prime is 12102212011003. The next prime is 12102212011049. The reversal of 12102212011021 is 12011021220121.

It is a cyclic number.

It is not a de Polignac number, because 12102212011021 - 2¹¹ = 12102212008973 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12102212010986 and 12102212011004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12102212021021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108750810 + ... + 108862036.

It is an arithmetic number, because the mean of its divisors is an integer number (828630803520).

Almost surely, 2^{12102212011021} is an apocalyptic number.

12102212011021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12102212011021 is a deficient number, since it is larger than the sum of its proper divisors (1155880845299).

12102212011021 is a wasteful number, since it uses less digits than its factorization.

12102212011021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152864.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12102212011021 its reverse (12011021220121), we get a palindrome (24113233231142).

The spelling of 12102212011021 in words is "twelve trillion, one hundred two billion, two hundred twelve million, eleven thousand, twenty-one".