1001212100012 has 12 divisors (see below), whose sum is σ = 1762612919760. Its totient is φ = 497608408656.

The previous prime is 1001212100011. The next prime is 1001212100081. The reversal of 1001212100012 is 2100012121001.

It is a super-4 number, since 4×1001212100012⁴ (a number of 49 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1001212099966 and 1001212100002.

It is not an unprimeable number, because it can be changed into a prime (1001212100011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 749409587 + ... + 749410922.

It is an arithmetic number, because the mean of its divisors is an integer number (146884409980).

Almost surely, 2^{1001212100012} is an apocalyptic number.

It is an amenable number.

1001212100012 is a deficient number, since it is larger than the sum of its proper divisors (761400819748).

1001212100012 is a wasteful number, since it uses less digits than its factorization.

1001212100012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1498820680 (or 1498820678 counting only the distinct ones).

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

Adding to 1001212100012 its reverse (2100012121001), we get a palindrome (3101224221013).

The spelling of 1001212100012 in words is "one trillion, one billion, two hundred twelve million, one hundred thousand, twelve".