1000212100011 has 32 divisors (see below), whose sum is σ = 1588330094400. Its totient is φ = 627584039424.

The previous prime is 1000212100003. The next prime is 1000212100031. The reversal of 1000212100011 is 1100012120001.

It is a happy number.

It is not a de Polignac number, because 1000212100011 - 2³ = 1000212100003 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1000212099966 and 1000212100002.

It is not an unprimeable number, because it can be changed into a prime (1000212100031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13414126 + ... + 13488483.

It is an arithmetic number, because the mean of its divisors is an integer number (49635315450).

Almost surely, 2^{1000212100011} is an apocalyptic number.

1000212100011 is a deficient number, since it is larger than the sum of its proper divisors (588117994389).

1000212100011 is an frugal number, since it uses more digits than its factorization.

1000212100011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26902647 (or 26902629 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 1000212100011 its reverse (1100012120001), we get a palindrome (2100224220012).

The spelling of 1000212100011 in words is "one trillion, two hundred twelve million, one hundred thousand, eleven".