1000212120011 has 32 divisors (see below), whose sum is σ = 1112333553408. Its totient is φ = 893549543040.

The previous prime is 1000212119993. The next prime is 1000212120049. The reversal of 1000212120011 is 1100212120001.

It is a cyclic number.

It is not a de Polignac number, because 1000212120011 - 2³⁸ = 725334213067 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1000212119974 and 1000212120001.

It is not an unprimeable number, because it can be changed into a prime (1000212120311) 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 31 ways as a sum of consecutive naturals, for example, 26755745 + ... + 26793101.

It is an arithmetic number, because the mean of its divisors is an integer number (34760423544).

Almost surely, 2^{1000212120011} is an apocalyptic number.

1000212120011 is a deficient number, since it is larger than the sum of its proper divisors (112121433397).

1000212120011 is a wasteful number, since it uses less digits than its factorization.

1000212120011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37851.

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

Adding to 1000212120011 its reverse (1100212120001), we get a palindrome (2100424240012).

The spelling of 1000212120011 in words is "one trillion, two hundred twelve million, one hundred twenty thousand, eleven".