211012112211009 has 12 divisors (see below), whose sum is σ = 289159037630064. Its totient is φ = 136872721431504.

The previous prime is 211012112211007. The next prime is 211012112211127. The reversal of 211012112211009 is 900112211210112.

It is not a de Polignac number, because 211012112211009 - 2¹ = 211012112211007 is a prime.

It is a super-2 number, since 2×211012112211009² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 211012112211009.

It is not an unprimeable number, because it can be changed into a prime (211012112211007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25689320487 + ... + 25689328700.

It is an arithmetic number, because the mean of its divisors is an integer number (24096586469172).

Almost surely, 2^{211012112211009} is an apocalyptic number.

It is an amenable number.

211012112211009 is a deficient number, since it is larger than the sum of its proper divisors (78146925419055).

211012112211009 is an equidigital number, since it uses as much as digits as its factorization.

211012112211009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51378649264 (or 51378649227 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 24.

The spelling of 211012112211009 in words is "two hundred eleven trillion, twelve billion, one hundred twelve million, two hundred eleven thousand, nine".