12221100101212 has 6 divisors (see below), whose sum is σ = 21386925177128. Its totient is φ = 6110550050604.

The previous prime is 12221100101173. The next prime is 12221100101237. The reversal of 12221100101212 is 21210100112221.

12221100101212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1527637512648 + ... + 1527637512655.

Almost surely, 2^{12221100101212} is an apocalyptic number.

It is an amenable number.

12221100101212 is a deficient number, since it is larger than the sum of its proper divisors (9165825075916).

12221100101212 is a wasteful number, since it uses less digits than its factorization.

12221100101212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3055275025307 (or 3055275025305 counting only the distinct ones).

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

Adding to 12221100101212 its reverse (21210100112221), we get a palindrome (33431200213433).

The spelling of 12221100101212 in words is "twelve trillion, two hundred twenty-one billion, one hundred million, one hundred one thousand, two hundred twelve".