12201022101212 has 48 divisors (see below), whose sum is σ = 24439502545920. Its totient is φ = 5220986377152.

The previous prime is 12201022101173. The next prime is 12201022101251. The reversal of 12201022101212 is 21210122010221.

12201022101212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12201022101173) and next prime (12201022101251).

It is a congruent number.

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, 81579533 + ... + 81728955.

It is an arithmetic number, because the mean of its divisors is an integer number (509156303040).

Almost surely, 2^{12201022101212} is an apocalyptic number.

It is an amenable number.

12201022101212 is an abundant number, since it is smaller than the sum of its proper divisors (12238480444708).

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

12201022101212 is a wasteful number, since it uses less digits than its factorization.

12201022101212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153890 (or 153888 counting only the distinct ones).

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

Adding to 12201022101212 its reverse (21210122010221), we get a palindrome (33411144111433).

Subtracting 12201022101212 from its reverse (21210122010221), we obtain a palindrome (9009099909009).

The spelling of 12201022101212 in words is "twelve trillion, two hundred one billion, twenty-two million, one hundred one thousand, two hundred twelve".