211122099 has 16 divisors (see below), whose sum is σ = 331172640. Its totient is φ = 132468480.

The previous prime is 211122097. The next prime is 211122101. The reversal of 211122099 is 990221112.

It is an interprime number because it is at equal distance from previous prime (211122097) and next prime (211122101).

It is not a de Polignac number, because 211122099 - 2¹ = 211122097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (211122097) 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 15 ways as a sum of consecutive naturals, for example, 229522 + ... + 230439.

It is an arithmetic number, because the mean of its divisors is an integer number (20698290).

Almost surely, 2^211122099 is an apocalyptic number.

211122099 is a deficient number, since it is larger than the sum of its proper divisors (120050541).

211122099 is a wasteful number, since it uses less digits than its factorization.

211122099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459987 (or 459981 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The square root of 211122099 is about 14530.0412594046. The cubic root of 211122099 is about 595.4489928331.

The spelling of 211122099 in words is "two hundred eleven million, one hundred twenty-two thousand, ninety-nine".