212040439999 has 2 divisors, whose sum is σ = 212040440000. Its totient is φ = 212040439998.

The previous prime is 212040439991. The next prime is 212040440057. The reversal of 212040439999 is 999934040212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212040439999 - 2³ = 212040439991 is a prime.

It is a super-2 number, since 2×212040439999² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212040439991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106020219999 + 106020220000.

It is an arithmetic number, because the mean of its divisors is an integer number (106020220000).

Almost surely, 2^212040439999 is an apocalyptic number.

212040439999 is a deficient number, since it is larger than the sum of its proper divisors (1).

212040439999 is an equidigital number, since it uses as much as digits as its factorization.

212040439999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1259712, while the sum is 52.

The spelling of 212040439999 in words is "two hundred twelve billion, forty million, four hundred thirty-nine thousand, nine hundred ninety-nine".