221422047307623 has 16 divisors (see below), whose sum is σ = 328735088098560. Its totient is φ = 147298606765848.

The previous prime is 221422047307613. The next prime is 221422047307649. The reversal of 221422047307623 is 326703740224122.

221422047307623 is a `hidden beast` number, since 2 + 2 + 14 + 2 + 2 + 0 + 4 + 7 + 3 + 0 + 7 + 623 = 666.

It is not a de Polignac number, because 221422047307623 - 2²⁸ = 221421778872167 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221422047307613) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8780304915 + ... + 8780330132.

It is an arithmetic number, because the mean of its divisors is an integer number (20545943006160).

Almost surely, 2^{221422047307623} is an apocalyptic number.

221422047307623 is a deficient number, since it is larger than the sum of its proper divisors (107313040790937).

221422047307623 is a wasteful number, since it uses less digits than its factorization.

221422047307623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17560635523 (or 17560635517 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 45.

The spelling of 221422047307623 in words is "two hundred twenty-one trillion, four hundred twenty-two billion, forty-seven million, three hundred seven thousand, six hundred twenty-three".