211020210102111 has 64 divisors (see below), whose sum is σ = 295743482781696. Its totient is φ = 133670727590400.

The previous prime is 211020210102061. The next prime is 211020210102127. The reversal of 211020210102111 is 111201012020112.

It is a happy number.

It is not a de Polignac number, because 211020210102111 - 2¹⁵ = 211020210069343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211020210102151) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3652546021 + ... + 3652603793.

It is an arithmetic number, because the mean of its divisors is an integer number (4620991918464).

Almost surely, 2^{211020210102111} is an apocalyptic number.

211020210102111 is a deficient number, since it is larger than the sum of its proper divisors (84723272679585).

211020210102111 is a wasteful number, since it uses less digits than its factorization.

211020210102111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60152.

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

Adding to 211020210102111 its reverse (111201012020112), we get a palindrome (322221222122223).

The spelling of 211020210102111 in words is "two hundred eleven trillion, twenty billion, two hundred ten million, one hundred two thousand, one hundred eleven".