210211111020018 has 8 divisors (see below), whose sum is σ = 420422222040048. Its totient is φ = 70070370340004.

The previous prime is 210211111020017. The next prime is 210211111020037. The reversal of 210211111020018 is 810020111112012.

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

210211111020018 is an admirable number.

It is a super-2 number, since 2×210211111020018² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 210211111019976 and 210211111020003.

It is not an unprimeable number, because it can be changed into a prime (210211111020017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17517592584996 + ... + 17517592585007.

It is an arithmetic number, because the mean of its divisors is an integer number (52552777755006).

Almost surely, 2^{210211111020018} is an apocalyptic number.

210211111020018 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

210211111020018 is a wasteful number, since it uses less digits than its factorization.

210211111020018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35035185170008.

The product of its (nonzero) digits is 64, while the sum is 21.

The spelling of 210211111020018 in words is "two hundred ten trillion, two hundred eleven billion, one hundred eleven million, twenty thousand, eighteen".