212112222101101 has 48 divisors (see below), whose sum is σ = 250049686760064. Its totient is φ = 176210650224000.

The previous prime is 212112222101089. The next prime is 212112222101159. The reversal of 212112222101101 is 101101222211212.

It is a happy number.

It is not a de Polignac number, because 212112222101101 - 2⁹ = 212112222100589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212112222101201) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3898162971 + ... + 3898217383.

It is an arithmetic number, because the mean of its divisors is an integer number (5209368474168).

Almost surely, 2^{212112222101101} is an apocalyptic number.

It is an amenable number.

212112222101101 is a deficient number, since it is larger than the sum of its proper divisors (37937464658963).

212112222101101 is an equidigital number, since it uses as much as digits as its factorization.

212112222101101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56434 (or 56363 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 212112222101101 its reverse (101101222211212), we get a palindrome (313213444312313).

The spelling of 212112222101101 in words is "two hundred twelve trillion, one hundred twelve billion, two hundred twenty-two million, one hundred one thousand, one hundred one".