211012975 has 12 divisors (see below), whose sum is σ = 264811176. Its totient is φ = 166774880.

The previous prime is 211012973. The next prime is 211012979. The reversal of 211012975 is 579210112.

It is not a de Polignac number, because 211012975 - 2¹ = 211012973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211012973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48772 + ... + 52921.

It is an arithmetic number, because the mean of its divisors is an integer number (22067598).

Almost surely, 2^211012975 is an apocalyptic number.

211012975 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

211012975 is a deficient number, since it is larger than the sum of its proper divisors (53798201).

211012975 is a wasteful number, since it uses less digits than its factorization.

211012975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101786 (or 101781 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 28.

The square root of 211012975 is about 14526.2856573867. The cubic root of 211012975 is about 595.3463840038.

The spelling of 211012975 in words is "two hundred eleven million, twelve thousand, nine hundred seventy-five".