1201000100012 has 12 divisors (see below), whose sum is σ = 2150628086376. Its totient is φ = 586534932480.

The previous prime is 1201000099991. The next prime is 1201000100017. The reversal of 1201000100012 is 2100010001021.

It is not an unprimeable number, because it can be changed into a prime (1201000100017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3491279189 + ... + 3491279532.

It is an arithmetic number, because the mean of its divisors is an integer number (179219007198).

Almost surely, 2^{1201000100012} is an apocalyptic number.

It is an amenable number.

1201000100012 is a deficient number, since it is larger than the sum of its proper divisors (949627986364).

1201000100012 is a wasteful number, since it uses less digits than its factorization.

1201000100012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6982558768 (or 6982558766 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 1201000100012 its reverse (2100010001021), we get a palindrome (3301010101033).

The spelling of 1201000100012 in words is "one trillion, two hundred one billion, one hundred thousand, twelve".