2121123313322 has 16 divisors (see below), whose sum is σ = 3544582726440. Its totient is φ = 945222059712.

The previous prime is 2121123313291. The next prime is 2121123313327. The reversal of 2121123313322 is 2233133211212.

It can be written as a sum of positive squares in 4 ways, for example, as 871554812041 + 1249568501281 = 933571^2 + 1117841^2 .

It is a super-4 number, since 4×2121123313322⁴ (a number of 50 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a junction number, because it is equal to n+sod(n) for n = 2121123313291 and 2121123313300.

It is not an unprimeable number, because it can be changed into a prime (2121123313327) 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, 1406579693 + ... + 1406581200.

Almost surely, 2^{2121123313322} is an apocalyptic number.

2121123313322 is a deficient number, since it is larger than the sum of its proper divisors (1423459413118).

2121123313322 is a wasteful number, since it uses less digits than its factorization.

2121123313322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2813160937.

The product of its digits is 2592, while the sum is 26.

Adding to 2121123313322 its reverse (2233133211212), we get a palindrome (4354256524534).

The spelling of 2121123313322 in words is "two trillion, one hundred twenty-one billion, one hundred twenty-three million, three hundred thirteen thousand, three hundred twenty-two".