210021212110011 has 8 divisors (see below), whose sum is σ = 281017782047040. Its totient is φ = 139519391789832.

The previous prime is 210021212109971. The next prime is 210021212110097. The reversal of 210021212110011 is 110011212120012.

It is a happy number.

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

It is not a de Polignac number, because 210021212110011 - 2¹⁰ = 210021212108987 is a prime.

It is a super-2 number, since 2×210021212110011² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (210021212112011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123687403221 + ... + 123687404918.

It is an arithmetic number, because the mean of its divisors is an integer number (35127222755880).

Almost surely, 2^{210021212110011} is an apocalyptic number.

210021212110011 is a deficient number, since it is larger than the sum of its proper divisors (70996569937029).

210021212110011 is a wasteful number, since it uses less digits than its factorization.

210021212110011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247374808425.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 210021212110011 its reverse (110011212120012), we get a palindrome (320032424230023).

The spelling of 210021212110011 in words is "two hundred ten trillion, twenty-one billion, two hundred twelve million, one hundred ten thousand, eleven".