221422001152679 has 2 divisors, whose sum is σ = 221422001152680. Its totient is φ = 221422001152678.

The previous prime is 221422001152657. The next prime is 221422001152691. The reversal of 221422001152679 is 976251100224122.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 221422001152679 - 2²⁰ = 221422000104103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221422001152379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110711000576339 + 110711000576340.

It is an arithmetic number, because the mean of its divisors is an integer number (110711000576340).

Almost surely, 2^{221422001152679} is an apocalyptic number.

221422001152679 is a deficient number, since it is larger than the sum of its proper divisors (1).

221422001152679 is an equidigital number, since it uses as much as digits as its factorization.

221422001152679 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 241920, while the sum is 44.

The spelling of 221422001152679 in words is "two hundred twenty-one trillion, four hundred twenty-two billion, one million, one hundred fifty-two thousand, six hundred seventy-nine".