212011112121101 has 8 divisors (see below), whose sum is σ = 219798766845504. Its totient is φ = 204348059872480.

The previous prime is 212011112121097. The next prime is 212011112121113. The reversal of 212011112121101 is 101121211110212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 212011112121101 - 2² = 212011112121097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 212011112121101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212011112121301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31150615481 + ... + 31150622286.

It is an arithmetic number, because the mean of its divisors is an integer number (27474845855688).

Almost surely, 2^{212011112121101} is an apocalyptic number.

It is an amenable number.

212011112121101 is a deficient number, since it is larger than the sum of its proper divisors (7787654724403).

212011112121101 is an equidigital number, since it uses as much as digits as its factorization.

212011112121101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62301237891.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 212011112121101 its reverse (101121211110212), we get a palindrome (313132323231313).

The spelling of 212011112121101 in words is "two hundred twelve trillion, eleven billion, one hundred twelve million, one hundred twenty-one thousand, one hundred one".