210111012099 has 16 divisors (see below), whose sum is σ = 327658499200. Its totient is φ = 132701691528.

The previous prime is 210111012079. The next prime is 210111012113. The reversal of 210111012099 is 990210111012.

It is not a de Polignac number, because 210111012099 - 2¹¹ = 210111010051 is a prime.

It is a super-2 number, since 2×210111012099² (a number of 23 digits) contains 22 as substring.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210111012079) 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, 204786049 + ... + 204787074.

It is an arithmetic number, because the mean of its divisors is an integer number (20478656200).

Almost surely, 2^210111012099 is an apocalyptic number.

210111012099 is a deficient number, since it is larger than the sum of its proper divisors (117547487101).

210111012099 is a wasteful number, since it uses less digits than its factorization.

210111012099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409573151 (or 409573145 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 27.

The spelling of 210111012099 in words is "two hundred ten billion, one hundred eleven million, twelve thousand, ninety-nine".