212122033131 has 4 divisors (see below), whose sum is σ = 282829377512. Its totient is φ = 141414688752.

The previous prime is 212122033129. The next prime is 212122033153. The reversal of 212122033131 is 131330221212.

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

It is not a de Polignac number, because 212122033131 - 2¹ = 212122033129 is a prime.

It is a super-4 number, since 4×212122033131⁴ (a number of 46 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212122033098 and 212122033107.

It is not an unprimeable number, because it can be changed into a prime (212122033111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35353672186 + ... + 35353672191.

It is an arithmetic number, because the mean of its divisors is an integer number (70707344378).

Almost surely, 2^212122033131 is an apocalyptic number.

212122033131 is a deficient number, since it is larger than the sum of its proper divisors (70707344381).

212122033131 is an equidigital number, since it uses as much as digits as its factorization.

212122033131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70707344380.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 212122033131 its reverse (131330221212), we get a palindrome (343452254343).

The spelling of 212122033131 in words is "two hundred twelve billion, one hundred twenty-two million, thirty-three thousand, one hundred thirty-one".