2122012201213 has 4 divisors (see below), whose sum is σ = 2134278167868. Its totient is φ = 2109746234560.

The previous prime is 2122012201201. The next prime is 2122012201223. The reversal of 2122012201213 is 3121022102212.

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 1553657545764 + 568354655449 = 1246458^2 + 753893^2 .

It is a cyclic number.

It is not a de Polignac number, because 2122012201213 - 2⁹ = 2122012200701 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 (2122012201223) 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, 6132983068 + ... + 6132983413.

It is an arithmetic number, because the mean of its divisors is an integer number (533569541967).

Almost surely, 2^{2122012201213} is an apocalyptic number.

It is an amenable number.

2122012201213 is a deficient number, since it is larger than the sum of its proper divisors (12265966655).

2122012201213 is a wasteful number, since it uses less digits than its factorization.

2122012201213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12265966654.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 2122012201213 its reverse (3121022102212), we get a palindrome (5243034303425).

Subtracting 2122012201213 from its reverse (3121022102212), we obtain a palindrome (999009900999).

The spelling of 2122012201213 in words is "two trillion, one hundred twenty-two billion, twelve million, two hundred one thousand, two hundred thirteen".