2212021321123 has 4 divisors (see below), whose sum is σ = 2212025455288. Its totient is φ = 2212017186960.

The previous prime is 2212021321121. The next prime is 2212021321189. The reversal of 2212021321123 is 3211231202122.

2212021321123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2212021321123 - 2¹ = 2212021321121 is a prime.

It is a super-2 number, since 2×2212021321123² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2212021321094 and 2212021321103.

It is not an unprimeable number, because it can be changed into a prime (2212021321121) 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, 1119786 + ... + 2382847.

It is an arithmetic number, because the mean of its divisors is an integer number (553006363822).

Almost surely, 2^{2212021321123} is an apocalyptic number.

2212021321123 is a deficient number, since it is larger than the sum of its proper divisors (4134165).

2212021321123 is an equidigital number, since it uses as much as digits as its factorization.

2212021321123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4134164.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 2212021321123 its reverse (3211231202122), we get a palindrome (5423252523245).

The spelling of 2212021321123 in words is "two trillion, two hundred twelve billion, twenty-one million, three hundred twenty-one thousand, one hundred twenty-three".