211020099 has 16 divisors (see below), whose sum is σ = 313591680. Its totient is φ = 125435520.

The previous prime is 211020091. The next prime is 211020107. The reversal of 211020099 is 990020112.

211020099 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (211020091) and next prime (211020107).

It is not a de Polignac number, because 211020099 - 2³ = 211020091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (211020091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107917 + ... + 109854.

It is an arithmetic number, because the mean of its divisors is an integer number (19599480).

Almost surely, 2^211020099 is an apocalyptic number.

211020099 is a deficient number, since it is larger than the sum of its proper divisors (102571581).

211020099 is a wasteful number, since it uses less digits than its factorization.

211020099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217810.

The product of its (nonzero) digits is 324, while the sum is 24.

The square root of 211020099 is about 14526.5308659707. The cubic root of 211020099 is about 595.3530837496.

The spelling of 211020099 in words is "two hundred eleven million, twenty thousand, ninety-nine".