210111220100109 has 8 divisors (see below), whose sum is σ = 280148541284160. Its totient is φ = 140074022824736.

The previous prime is 210111220100069. The next prime is 210111220100167. The reversal of 210111220100109 is 901001022111012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 210111220100109 - 2¹⁷ = 210111219969037 is a prime.

It is a super-4 number, since 4×210111220100109⁴ (a number of 58 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210111220100909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26945592 + ... + 33856865.

It is an arithmetic number, because the mean of its divisors is an integer number (35018567660520).

Almost surely, 2^{210111220100109} is an apocalyptic number.

It is an amenable number.

210111220100109 is a deficient number, since it is larger than the sum of its proper divisors (70037321184051).

210111220100109 is a wasteful number, since it uses less digits than its factorization.

210111220100109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61954339.

The product of its (nonzero) digits is 72, while the sum is 21.

The spelling of 210111220100109 in words is "two hundred ten trillion, one hundred eleven billion, two hundred twenty million, one hundred thousand, one hundred nine".