212211322131 has 8 divisors (see below), whose sum is σ = 286933618944. Its totient is φ = 139481620040.

The previous prime is 212211322123. The next prime is 212211322153. The reversal of 212211322131 is 131223112212.

212211322131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212211322131 - 2³ = 212211322123 is a prime.

It is a super-2 number, since 2×212211322131² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212211322098 and 212211322107.

It is not an unprimeable number, because it can be changed into a prime (212211322121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 498148431 + ... + 498148856.

It is an arithmetic number, because the mean of its divisors is an integer number (35866702368).

Almost surely, 2^212211322131 is an apocalyptic number.

212211322131 is a deficient number, since it is larger than the sum of its proper divisors (74722296813).

212211322131 is an equidigital number, since it uses as much as digits as its factorization.

212211322131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 996297361.

The product of its digits is 288, while the sum is 21.

Adding to 212211322131 its reverse (131223112212), we get a palindrome (343434434343).

The spelling of 212211322131 in words is "two hundred twelve billion, two hundred eleven million, three hundred twenty-two thousand, one hundred thirty-one".