221434000399 has 2 divisors, whose sum is σ = 221434000400. Its totient is φ = 221434000398.

The previous prime is 221434000393. The next prime is 221434000493. The reversal of 221434000399 is 993000434122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 221434000399 - 2¹¹ = 221433998351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221434000393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110717000199 + 110717000200.

It is an arithmetic number, because the mean of its divisors is an integer number (110717000200).

Almost surely, 2^221434000399 is an apocalyptic number.

221434000399 is a deficient number, since it is larger than the sum of its proper divisors (1).

221434000399 is an equidigital number, since it uses as much as digits as its factorization.

221434000399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 37.

The spelling of 221434000399 in words is "two hundred twenty-one billion, four hundred thirty-four million, three hundred ninety-nine", and thus it is an aban number.