210012021011 has 16 divisors (see below), whose sum is σ = 228938976000. Its totient is φ = 191495117088.

The previous prime is 210012020993. The next prime is 210012021017. The reversal of 210012021011 is 110120210012.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210012021011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210012020983 and 210012021001.

It is not an unprimeable number, because it can be changed into a prime (210012021017) 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, 67580 + ... + 651606.

It is an arithmetic number, because the mean of its divisors is an integer number (14308686000).

Almost surely, 2^210012021011 is an apocalyptic number.

210012021011 is a deficient number, since it is larger than the sum of its proper divisors (18926954989).

210012021011 is a wasteful number, since it uses less digits than its factorization.

210012021011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584378.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 210012021011 its reverse (110120210012), we get a palindrome (320132231023).

The spelling of 210012021011 in words is "two hundred ten billion, twelve million, twenty-one thousand, eleven".