221331120379 has 2 divisors, whose sum is σ = 221331120380. Its totient is φ = 221331120378.

The previous prime is 221331120293. The next prime is 221331120421. The reversal of 221331120379 is 973021133122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 221331120379 - 2¹⁷ = 221330989307 is a prime.

It is not a weakly prime, because it can be changed into another prime (221331120079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110665560189 + 110665560190.

It is an arithmetic number, because the mean of its divisors is an integer number (110665560190).

Almost surely, 2^221331120379 is an apocalyptic number.

221331120379 is a deficient number, since it is larger than the sum of its proper divisors (1).

221331120379 is an equidigital number, since it uses as much as digits as its factorization.

221331120379 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 34.

The spelling of 221331120379 in words is "two hundred twenty-one billion, three hundred thirty-one million, one hundred twenty thousand, three hundred seventy-nine".