12102211022021 has 16 divisors (see below), whose sum is σ = 12574281058560. Its totient is φ = 11633799300480.

The previous prime is 12102211021997. The next prime is 12102211022071. The reversal of 12102211022021 is 12022011220121.

12102211022021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-12102211022021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12102211022071) 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, 91768496 + ... + 91900278.

It is an arithmetic number, because the mean of its divisors is an integer number (785892566160).

Almost surely, 2^{12102211022021} is an apocalyptic number.

It is an amenable number.

12102211022021 is a deficient number, since it is larger than the sum of its proper divisors (472070036539).

12102211022021 is a wasteful number, since it uses less digits than its factorization.

12102211022021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145636.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12102211022021 its reverse (12022011220121), we get a palindrome (24124222242142).

The spelling of 12102211022021 in words is "twelve trillion, one hundred two billion, two hundred eleven million, twenty-two thousand, twenty-one".