1000212120211 has 16 divisors (see below), whose sum is σ = 1066779705600. Its totient is φ = 935118671328.

The previous prime is 1000212120209. The next prime is 1000212120217. The reversal of 1000212120211 is 1120212120001.

It is a cyclic number.

It is not a de Polignac number, because 1000212120211 - 2¹ = 1000212120209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1000212120191 and 1000212120200.

It is not an unprimeable number, because it can be changed into a prime (1000212120217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 692860 + ... + 1574953.

It is an arithmetic number, because the mean of its divisors is an integer number (66673731600).

Almost surely, 2^{1000212120211} is an apocalyptic number.

1000212120211 is a deficient number, since it is larger than the sum of its proper divisors (66567585389).

1000212120211 is a wasteful number, since it uses less digits than its factorization.

1000212120211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2268138.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1000212120211 its reverse (1120212120001), we get a palindrome (2120424240212).

The spelling of 1000212120211 in words is "one trillion, two hundred twelve million, one hundred twenty thousand, two hundred eleven".