12200111012 has 6 divisors (see below), whose sum is σ = 21350194278. Its totient is φ = 6100055504.

The previous prime is 12200111009. The next prime is 12200111069. The reversal of 12200111012 is 21011100221.

It can be written as a sum of positive squares in only one way, i.e., 11719361536 + 480749476 = 108256^2 + 21926^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12200110984 and 12200111002.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1525013873 + ... + 1525013880.

It is an arithmetic number, because the mean of its divisors is an integer number (3558365713).

Almost surely, 2^12200111012 is an apocalyptic number.

It is an amenable number.

12200111012 is a deficient number, since it is larger than the sum of its proper divisors (9150083266).

12200111012 is a wasteful number, since it uses less digits than its factorization.

12200111012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3050027757 (or 3050027755 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 12200111012 its reverse (21011100221), we get a palindrome (33211211233).

The spelling of 12200111012 in words is "twelve billion, two hundred million, one hundred eleven thousand, twelve".