211110122120000 has 70 divisors (see below), whose sum is σ = 523484492167098. Its totient is φ = 84444048832000.

The previous prime is 211110122119973. The next prime is 211110122120099. The reversal of 211110122120000 is 21221011112.

It can be written as a sum of positive squares in 5 ways, for example, as 57153841920256 + 153956280199744 = 7560016^2 + 12407912^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2638836527 + ... + 2638916526.

Almost surely, 2^{211110122120000} is an apocalyptic number.

211110122120000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211110122120000 is an abundant number, since it is smaller than the sum of its proper divisors (312374370047098).

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

211110122120000 is an frugal number, since it uses more digits than its factorization.

211110122120000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5277753085 (or 5277753060 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 211110122120000 its reverse (21221011112), we get a palindrome (211131343131112).

The spelling of 211110122120000 in words is "two hundred eleven trillion, one hundred ten billion, one hundred twenty-two million, one hundred twenty thousand".