212101222101 has 8 divisors (see below), whose sum is σ = 285028414464. Its totient is φ = 140287422240.

The previous prime is 212101222087. The next prime is 212101222121. The reversal of 212101222101 is 101222101212.

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

It is not a de Polignac number, because 212101222101 - 2¹¹ = 212101220053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212101222121) 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, 278347680 + ... + 278348441.

It is an arithmetic number, because the mean of its divisors is an integer number (35628551808).

Almost surely, 2^212101222101 is an apocalyptic number.

It is an amenable number.

212101222101 is a deficient number, since it is larger than the sum of its proper divisors (72927192363).

212101222101 is a wasteful number, since it uses less digits than its factorization.

212101222101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556696251.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 212101222101 its reverse (101222101212), we get a palindrome (313323323313).

The spelling of 212101222101 in words is "two hundred twelve billion, one hundred one million, two hundred twenty-two thousand, one hundred one".