210012021111 has 12 divisors (see below), whose sum is σ = 295529383032. Its totient is φ = 132639170544.

The previous prime is 210012021103. The next prime is 210012021133. The reversal of 210012021111 is 111120210012.

210012021111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 210012021111 - 2³ = 210012021103 is a prime.

It is a super-2 number, since 2×210012021111² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210012021101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 96957376 + ... + 96959541.

It is an arithmetic number, because the mean of its divisors is an integer number (24627448586).

Almost surely, 2^210012021111 is an apocalyptic number.

210012021111 is a deficient number, since it is larger than the sum of its proper divisors (85517361921).

210012021111 is a wasteful number, since it uses less digits than its factorization.

210012021111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193916958 (or 193916939 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 210012021111 its reverse (111120210012), we get a palindrome (321132231123).

The spelling of 210012021111 in words is "two hundred ten billion, twelve million, twenty-one thousand, one hundred eleven".