1200001100212 has 12 divisors (see below), whose sum is σ = 2120794024356. Its totient is φ = 594059950400.

The previous prime is 1200001100203. The next prime is 1200001100231. The reversal of 1200001100212 is 2120011000021.

It can be written as a sum of positive squares in 2 ways, for example, as 588111069456 + 611890030756 = 766884^2 + 782234^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1485149473 + ... + 1485150280.

It is an arithmetic number, because the mean of its divisors is an integer number (176732835363).

Almost surely, 2^{1200001100212} is an apocalyptic number.

It is an amenable number.

1200001100212 is a deficient number, since it is larger than the sum of its proper divisors (920792924144).

1200001100212 is a wasteful number, since it uses less digits than its factorization.

1200001100212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2970299858 (or 2970299856 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 1200001100212 its reverse (2120011000021), we get a palindrome (3320012100233).

The spelling of 1200001100212 in words is "one trillion, two hundred billion, one million, one hundred thousand, two hundred twelve".