212203022131 has 4 divisors (see below), whose sum is σ = 212657418792. Its totient is φ = 211748625472.

The previous prime is 212203022063. The next prime is 212203022167. The reversal of 212203022131 is 131220302212.

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 212203022131 - 2⁹ = 212203021619 is a prime.

It is a super-2 number, since 2×212203022131² (a number of 23 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 = 212203022099 and 212203022108.

It is not an unprimeable number, because it can be changed into a prime (212203022191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 227197630 + ... + 227198563.

It is an arithmetic number, because the mean of its divisors is an integer number (53164354698).

Almost surely, 2^212203022131 is an apocalyptic number.

212203022131 is a deficient number, since it is larger than the sum of its proper divisors (454396661).

212203022131 is an equidigital number, since it uses as much as digits as its factorization.

212203022131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454396660.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 212203022131 its reverse (131220302212), we get a palindrome (343423324343).

The spelling of 212203022131 in words is "two hundred twelve billion, two hundred three million, twenty-two thousand, one hundred thirty-one".