2212110021101 has 4 divisors (see below), whose sum is σ = 2231686216092. Its totient is φ = 2192533826112.

The previous prime is 2212110021091. The next prime is 2212110021103. The reversal of 2212110021101 is 1011200112122.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 991416498601 + 1220693522500 = 995699^2 + 1104850^2 .

It is a cyclic number.

It is not a de Polignac number, because 2212110021101 - 2³⁸ = 1937232114157 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 (2212110021103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9788097326 + ... + 9788097551.

It is an arithmetic number, because the mean of its divisors is an integer number (557921554023).

Almost surely, 2^{2212110021101} is an apocalyptic number.

It is an amenable number.

2212110021101 is a deficient number, since it is larger than the sum of its proper divisors (19576194991).

2212110021101 is a wasteful number, since it uses less digits than its factorization.

2212110021101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19576194990.

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

Adding to 2212110021101 its reverse (1011200112122), we get a palindrome (3223310133223).

The spelling of 2212110021101 in words is "two trillion, two hundred twelve billion, one hundred ten million, twenty-one thousand, one hundred one".