211010212020111 has 32 divisors (see below), whose sum is σ = 322478061281280. Its totient is φ = 120225344713056.

The previous prime is 211010212020109. The next prime is 211010212020137. The reversal of 211010212020111 is 111020212010112.

It is a happy number.

It is not a de Polignac number, because 211010212020111 - 2¹ = 211010212020109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211010212020511) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54731070 + ... + 58459476.

It is an arithmetic number, because the mean of its divisors is an integer number (10077439415040).

Almost surely, 2^{211010212020111} is an apocalyptic number.

211010212020111 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

211010212020111 is a deficient number, since it is larger than the sum of its proper divisors (111467849261169).

211010212020111 is a wasteful number, since it uses less digits than its factorization.

211010212020111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3736283.

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

Adding to 211010212020111 its reverse (111020212010112), we get a palindrome (322030424030223).

Subtracting from 211010212020111 its reverse (111020212010112), we obtain a palindrome (99990000009999).

The spelling of 211010212020111 in words is "two hundred eleven trillion, ten billion, two hundred twelve million, twenty thousand, one hundred eleven".