1212200110012 has 24 divisors (see below), whose sum is σ = 2139666120704. Its totient is φ = 600874131312.

The previous prime is 1212200109971. The next prime is 1212200110109. The reversal of 1212200110012 is 2100110022121.

It is a junction number, because it is equal to n+sod(n) for n = 1212200109974 and 1212200110001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 224988 + ... + 1573219.

Almost surely, 2^{1212200110012} is an apocalyptic number.

It is an amenable number.

1212200110012 is a deficient number, since it is larger than the sum of its proper divisors (927466010692).

1212200110012 is a wasteful number, since it uses less digits than its factorization.

1212200110012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1799665 (or 1799663 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1212200110012 its reverse (2100110022121), we get a palindrome (3312310132133).

The spelling of 1212200110012 in words is "one trillion, two hundred twelve billion, two hundred million, one hundred ten thousand, twelve".