212004211122331 has 4 divisors (see below), whose sum is σ = 216934541613592. Its totient is φ = 207073880631072.

The previous prime is 212004211122317. The next prime is 212004211122491. The reversal of 212004211122331 is 133221112400212.

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 212004211122331 - 2⁷ = 212004211122203 is a prime.

It is a super-2 number, since 2×212004211122331² (a number of 29 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 = 212004211122296 and 212004211122305.

It is not an unprimeable number, because it can be changed into a prime (212094211122331) 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, 2465165245566 + ... + 2465165245651.

It is an arithmetic number, because the mean of its divisors is an integer number (54233635403398).

Almost surely, 2^{212004211122331} is an apocalyptic number.

212004211122331 is a deficient number, since it is larger than the sum of its proper divisors (4930330491261).

212004211122331 is an equidigital number, since it uses as much as digits as its factorization.

212004211122331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4930330491260.

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 212004211122331 its reverse (133221112400212), we get a palindrome (345225323522543).

The spelling of 212004211122331 in words is "two hundred twelve trillion, four billion, two hundred eleven million, one hundred twenty-two thousand, three hundred thirty-one".