99473560184221 has 2 divisors, whose sum is σ = 99473560184222. Its totient is φ = 99473560184220.

The previous prime is 99473560184203. The next prime is 99473560184237. The reversal of 99473560184221 is 12248106537499.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99368898876025 + 104661308196 = 9968395^2 + 323514^2 .

It is a cyclic number.

It is not a de Polignac number, because 99473560184221 - 2⁵ = 99473560184189 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 99473560184221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99473560188221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49736780092110 + 49736780092111.

It is an arithmetic number, because the mean of its divisors is an integer number (49736780092111).

It is a 1-persistent number, because it is pandigital, but 2⋅99473560184221 = 198947120368442 is not.

Almost surely, 2^{99473560184221} is an apocalyptic number.

It is an amenable number.

99473560184221 is a deficient number, since it is larger than the sum of its proper divisors (1).

99473560184221 is an equidigital number, since it uses as much as digits as its factorization.

99473560184221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26127360, while the sum is 61.

The spelling of 99473560184221 in words is "ninety-nine trillion, four hundred seventy-three billion, five hundred sixty million, one hundred eighty-four thousand, two hundred twenty-one".