212140304120449 has 2 divisors, whose sum is σ = 212140304120450. Its totient is φ = 212140304120448.

The previous prime is 212140304120411. The next prime is 212140304120473. The reversal of 212140304120449 is 944021403041212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 187657669392400 + 24482634728049 = 13698820^2 + 4947993^2 .

It is a cyclic number.

It is not a de Polignac number, because 212140304120449 - 2¹⁵ = 212140304087681 is a prime.

It is not a weakly prime, because it can be changed into another prime (212140304100449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106070152060224 + 106070152060225.

It is an arithmetic number, because the mean of its divisors is an integer number (106070152060225).

Almost surely, 2^{212140304120449} is an apocalyptic number.

It is an amenable number.

212140304120449 is a deficient number, since it is larger than the sum of its proper divisors (1).

212140304120449 is an equidigital number, since it uses as much as digits as its factorization.

212140304120449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 55296, while the sum is 37.

The spelling of 212140304120449 in words is "two hundred twelve trillion, one hundred forty billion, three hundred four million, one hundred twenty thousand, four hundred forty-nine".