2212120010101 has 4 divisors (see below), whose sum is σ = 2242423024012. Its totient is φ = 2181816996192.

The previous prime is 2212120010081. The next prime is 2212120010159. The reversal of 2212120010101 is 1010100212122.

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 1826322502225 + 385797507876 = 1351415^2 + 621126^2 .

It is a cyclic number.

It is not a de Polignac number, because 2212120010101 - 2³⁵ = 2177760271733 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 (2212120016101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15151506846 + ... + 15151506991.

It is an arithmetic number, because the mean of its divisors is an integer number (560605756003).

Almost surely, 2^{2212120010101} is an apocalyptic number.

It is an amenable number.

2212120010101 is a deficient number, since it is larger than the sum of its proper divisors (30303013911).

2212120010101 is an equidigital number, since it uses as much as digits as its factorization.

2212120010101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30303013910.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 2212120010101 its reverse (1010100212122), we get a palindrome (3222220222223).

The spelling of 2212120010101 in words is "two trillion, two hundred twelve billion, one hundred twenty million, ten thousand, one hundred one".