211112021211102 has 48 divisors (see below), whose sum is σ = 500008327453440. Its totient is φ = 63843047797200.

The previous prime is 211112021211073. The next prime is 211112021211193. The reversal of 211112021211102 is 201112120211112.

It is a happy number.

211112021211102 is a `hidden beast` number, since 211 + 1 + 120 + 21 + 211 + 102 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 1085668902 + ... + 1085863337.

It is an arithmetic number, because the mean of its divisors is an integer number (10416840155280).

Almost surely, 2^{211112021211102} is an apocalyptic number.

211112021211102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

211112021211102 is an abundant number, since it is smaller than the sum of its proper divisors (288896306242338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211112021211102 is a wasteful number, since it uses less digits than its factorization.

211112021211102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2171532749 (or 2171532746 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 211112021211102 its reverse (201112120211112), we get a palindrome (412224141422214).

The spelling of 211112021211102 in words is "two hundred eleven trillion, one hundred twelve billion, twenty-one million, two hundred eleven thousand, one hundred two".