12200231121212 has 6 divisors (see below), whose sum is σ = 21350404462128. Its totient is φ = 6100115560604.

The previous prime is 12200231121173. The next prime is 12200231121223. The reversal of 12200231121212 is 21212113200221.

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, 1525028890148 + ... + 1525028890155.

It is an arithmetic number, because the mean of its divisors is an integer number (3558400743688).

Almost surely, 2^{12200231121212} is an apocalyptic number.

It is an amenable number.

12200231121212 is a deficient number, since it is larger than the sum of its proper divisors (9150173340916).

12200231121212 is a wasteful number, since it uses less digits than its factorization.

12200231121212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3050057780307 (or 3050057780305 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 12200231121212 its reverse (21212113200221), we get a palindrome (33412344321433).

The spelling of 12200231121212 in words is "twelve trillion, two hundred billion, two hundred thirty-one million, one hundred twenty-one thousand, two hundred twelve".