2122012110101 has 4 divisors (see below), whose sum is σ = 2285243810892. Its totient is φ = 1958780409312.

The previous prime is 2122012110079. The next prime is 2122012110121. The reversal of 2122012110101 is 1010112102212.

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 184041858001 + 1937970252100 = 429001^2 + 1392110^2 .

It is a cyclic number.

It is not a de Polignac number, because 2122012110101 - 2⁶ = 2122012110037 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122012110121) 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, 81615850376 + ... + 81615850401.

It is an arithmetic number, because the mean of its divisors is an integer number (571310952723).

Almost surely, 2^{2122012110101} is an apocalyptic number.

It is an amenable number.

2122012110101 is a deficient number, since it is larger than the sum of its proper divisors (163231700791).

2122012110101 is a wasteful number, since it uses less digits than its factorization.

2122012110101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163231700790.

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

Adding to 2122012110101 its reverse (1010112102212), we get a palindrome (3132124212313).

The spelling of 2122012110101 in words is "two trillion, one hundred twenty-two billion, twelve million, one hundred ten thousand, one hundred one".