221112021967 has 2 divisors, whose sum is σ = 221112021968. Its totient is φ = 221112021966.

The previous prime is 221112021953. The next prime is 221112021983. The reversal of 221112021967 is 769120211122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 221112021967 - 2³¹ = 218964538319 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221112021917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110556010983 + 110556010984.

It is an arithmetic number, because the mean of its divisors is an integer number (110556010984).

Almost surely, 2^221112021967 is an apocalyptic number.

221112021967 is a deficient number, since it is larger than the sum of its proper divisors (1).

221112021967 is an equidigital number, since it uses as much as digits as its factorization.

221112021967 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 34.

The spelling of 221112021967 in words is "two hundred twenty-one billion, one hundred twelve million, twenty-one thousand, nine hundred sixty-seven".