212120010011 has 32 divisors (see below), whose sum is σ = 264111684480. Its totient is φ = 165877899264.

The previous prime is 212120010001. The next prime is 212120010023. The reversal of 212120010011 is 110010021212.

It is not a de Polignac number, because 212120010011 - 2²⁶ = 212052901147 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212120009974 and 212120010001.

It is not an unprimeable number, because it can be changed into a prime (212120010001) 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, 31040051 + ... + 31046883.

It is an arithmetic number, because the mean of its divisors is an integer number (8253490140).

Almost surely, 2^212120010011 is an apocalyptic number.

212120010011 is a deficient number, since it is larger than the sum of its proper divisors (51991674469).

212120010011 is a wasteful number, since it uses less digits than its factorization.

212120010011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10775.

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

Adding to 212120010011 its reverse (110010021212), we get a palindrome (322130031223).

The spelling of 212120010011 in words is "two hundred twelve billion, one hundred twenty million, ten thousand, eleven".