211121079 has 32 divisors (see below), whose sum is σ = 322237440. Its totient is φ = 121800192.

The previous prime is 211121077. The next prime is 211121081. The reversal of 211121079 is 970121112.

It is an interprime number because it is at equal distance from previous prime (211121077) and next prime (211121081).

It is not a de Polignac number, because 211121079 - 2¹ = 211121077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211121077) 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 31 ways as a sum of consecutive naturals, for example, 237574 + ... + 238460.

It is an arithmetic number, because the mean of its divisors is an integer number (10069920).

Almost surely, 2^211121079 is an apocalyptic number.

211121079 is a deficient number, since it is larger than the sum of its proper divisors (111116361).

211121079 is a wasteful number, since it uses less digits than its factorization.

211121079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1279.

The product of its (nonzero) digits is 252, while the sum is 24.

The square root of 211121079 is about 14530.0061596683. The cubic root of 211121079 is about 595.4480338952.

The spelling of 211121079 in words is "two hundred eleven million, one hundred twenty-one thousand, seventy-nine".