221222270939 has 2 divisors, whose sum is σ = 221222270940. Its totient is φ = 221222270938.

The previous prime is 221222270933. The next prime is 221222270947. The reversal of 221222270939 is 939072222122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 221222270939 - 2⁸ = 221222270683 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 221222270896 and 221222270905.

It is not a weakly prime, because it can be changed into another prime (221222270933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110611135469 + 110611135470.

It is an arithmetic number, because the mean of its divisors is an integer number (110611135470).

Almost surely, 2^221222270939 is an apocalyptic number.

221222270939 is a deficient number, since it is larger than the sum of its proper divisors (1).

221222270939 is an equidigital number, since it uses as much as digits as its factorization.

221222270939 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 41.

The spelling of 221222270939 in words is "two hundred twenty-one billion, two hundred twenty-two million, two hundred seventy thousand, nine hundred thirty-nine".