221234034379 has 2 divisors, whose sum is σ = 221234034380. Its totient is φ = 221234034378.

The previous prime is 221234034347. The next prime is 221234034397. The reversal of 221234034379 is 973430432122.

Together with next prime (221234034397) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 221234034379 - 2⁵ = 221234034347 is a prime.

It is not a weakly prime, because it can be changed into another prime (221234034079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110617017189 + 110617017190.

It is an arithmetic number, because the mean of its divisors is an integer number (110617017190).

Almost surely, 2^221234034379 is an apocalyptic number.

221234034379 is a deficient number, since it is larger than the sum of its proper divisors (1).

221234034379 is an equidigital number, since it uses as much as digits as its factorization.

221234034379 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 40.

The spelling of 221234034379 in words is "two hundred twenty-one billion, two hundred thirty-four million, thirty-four thousand, three hundred seventy-nine".