10211210200018 has 4 divisors (see below), whose sum is σ = 15316815300030. Its totient is φ = 5105605100008.

The previous prime is 10211210200001. The next prime is 10211210200019. The reversal of 10211210200018 is 81000201211201.

10211210200018 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 6345043609969 + 3866166590049 = 2518937^2 + 1966257^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10211210199968 and 10211210200004.

It is not an unprimeable number, because it can be changed into a prime (10211210200019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2552802550003 + ... + 2552802550006.

Almost surely, 2^{10211210200018} is an apocalyptic number.

10211210200018 is a deficient number, since it is larger than the sum of its proper divisors (5105605100012).

10211210200018 is an equidigital number, since it uses as much as digits as its factorization.

10211210200018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5105605100011.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 10211210200018 its reverse (81000201211201), we get a palindrome (91211411411219).

The spelling of 10211210200018 in words is "ten trillion, two hundred eleven billion, two hundred ten million, two hundred thousand, eighteen".