212033131 has 2 divisors, whose sum is σ = 212033132. Its totient is φ = 212033130.

The previous prime is 212033117. The next prime is 212033137. The reversal of 212033131 is 131330212.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212033131 is a prime.

It is a super-2 number, since 2×212033131² = 89916097283326322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (212033137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106016565 + 106016566.

It is an arithmetic number, because the mean of its divisors is an integer number (106016566).

Almost surely, 2^212033131 is an apocalyptic number.

212033131 is a deficient number, since it is larger than the sum of its proper divisors (1).

212033131 is an equidigital number, since it uses as much as digits as its factorization.

212033131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 212033131 is about 14561.3574573252. The cubic root of 212033131 is about 596.3042556773.

Adding to 212033131 its reverse (131330212), we get a palindrome (343363343).

The spelling of 212033131 in words is "two hundred twelve million, thirty-three thousand, one hundred thirty-one".