390670221299 has 2 divisors, whose sum is σ = 390670221300. Its totient is φ = 390670221298.

The previous prime is 390670221287. The next prime is 390670221313. The reversal of 390670221299 is 992122076093.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 390670221299 - 2⁴ = 390670221283 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (390670221499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 195335110649 + 195335110650.

It is an arithmetic number, because the mean of its divisors is an integer number (195335110650).

Almost surely, 2^390670221299 is an apocalyptic number.

390670221299 is a deficient number, since it is larger than the sum of its proper divisors (1).

390670221299 is an equidigital number, since it uses as much as digits as its factorization.

390670221299 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 734832, while the sum is 50.

The spelling of 390670221299 in words is "three hundred ninety billion, six hundred seventy million, two hundred twenty-one thousand, two hundred ninety-nine".